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Quantum dot

Index Quantum dot

Quantum dots (QD) are very small semiconductor particles, only several nanometres in size, so small that their optical and electronic properties differ from those of larger particles. [1]

175 relations: Absorption (electromagnetic radiation), Alexey Ekimov, American Elements, Annealing (metallurgy), Aptamer, Atom, Backlight, Band gap, Biocomposite, Bohr model, Bohr radius, Bound state, Cadmium, Cadmium selenide, Cadmium sulfide, Cadmium telluride, Cadmium-free quantum dot, Cancer, Carbon quantum dots, Carrier generation and recombination, CellSqueeze, Chalcogenide, Chemical energy, Chemical potential, Chemical synthesis, CMOS, Colloid, Combinatorial biology, Core–shell semiconductor nanocrystal, Coulomb, Coulomb blockade, Crystallite, Cytotoxicity, Density of states, DNA-functionalized quantum dots, Dye, Electric potential, Electrochemistry, Electron, Electron configuration, Electron hole, Electron transfer, Electron-beam lithography, Embryogenesis, Energy conversion efficiency, Epitaxy, Excited state, Exciton, Exocytosis, Förster resonance energy transfer, ..., Flow chemistry, Fluorescence, Fluorescence intermittency, Fluorescence spectroscopy, Fluorescent lamp, Fluorophore, Genetic engineering, Graphene, Heavy metals, Hybrid solar cell, Hydrogel encapsulation of quantum dots, Immunology, In vitro, In vivo, Indium arsenide, Indium phosphide, Inkjet printing, Integrated circuit, Ionic strength, Kelvin, Langmuir–Blodgett film, Laser diode, Lateral quantum dot, Lead selenide, Lead sulfide, Lethal dose, Ligand, Light-emitting diode, Liquid crystal, Liquid-crystal display, Logic gate, Louis E. Brus, Lymphocyte, M13 bacteriophage, Magnetic field, Mass transfer, Materials science, Medical imaging, Melting-point depression, Metastasis, Microelectromechanical systems, Mie scattering, Molecular beam epitaxy, Molecule, Monochrome, Monomer, Multiple exciton generation, Nanoco, Nanocrystal, Nanocrystal solar cell, Nanometre, Nanotechnology, Nanotechnology (journal), Nanowire, Nature (journal), Near-field scanning optical microscope, Normal distribution, OLED, Ormosil, Particle in a box, Peptide, Periodic table, Philosophical Magazine, Photobleaching, Photocatalysis, Photodissociation, Photolithography, Photoluminescence, Physical chemistry, Physics Today, Plum pudding model, Potential well, Precursor (chemistry), Pseudopotential, Quantum computing, Quantum cryptography, Quantum dot, Quantum dot display, Quantum dot laser, Quantum efficiency, Quantum entanglement, Quantum information science, Quantum point contact, Quantum well, Quantum wire, Quantum yield, Qubit, Random matrix, Reactive oxygen species, Redox, Reduced mass, Refractive index, Relative permittivity, Second-harmonic generation, Self-assembled monolayer, Semiconductor, Semiconductor device fabrication, Silicon dioxide, Solar cell, Solar fuel, Spectral color, Spectroscopy, Spectrum, Spin coating, Standard conditions for temperature and pressure, Stem cell, Strain (chemistry), Stranski–Krastanov growth, Superatom, Surface plasmon resonance, Surfactant, Technetium-99m, Thermodynamics, Thin film, Thomson problem, Tobacco mosaic virus, Toxicity, Transistor, Trojan wave packet, Ultraviolet, Virus, Wetting layer, XBR (Sony), Zero-dimensional space, Zinc sulfide. Expand index (125 more) »

Absorption (electromagnetic radiation)

In physics, absorption of electromagnetic radiation is the way in which the energy of a photon is taken up by matter, typically the electrons of an atom.

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Alexey Ekimov

Alexey I. Ekimov is a Russian solid state physicist who discovered the semiconductor nanocrystals known as quantum dots, while working at the Vavilov State Optical Institute.

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American Elements

American Elements is a global manufacturer and distributor of the elements on the periodic table with a 10,000-page online compendium of information on the properties and uses of the elements.

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Annealing (metallurgy)

Annealing, in metallurgy and materials science, is a heat treatment that alters the physical and sometimes chemical properties of a material to increase its ductility and reduce its hardness, making it more workable.

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Aptamer

Aptamers (from the Latin aptus – fit, and Greek meros – part) are oligonucleotide or peptide molecules that bind to a specific target molecule.

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Atom

An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element.

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Backlight

A backlight is a form of illumination used in liquid crystal displays (LCDs).

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Band gap

In solid-state physics, a band gap, also called an energy gap or bandgap, is an energy range in a solid where no electron states can exist.

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Biocomposite

Biocomposite (from Greek alive) is a composite material formed by a matrix (resin) and a reinforcement of natural fibers.

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Bohr model

In atomic physics, the Rutherford–Bohr model or Bohr model or Bohr diagram, introduced by Niels Bohr and Ernest Rutherford in 1913, depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus—similar to the structure of the Solar System, but with attraction provided by electrostatic forces rather than gravity.

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Bohr radius

The Bohr radius (a0 or rBohr) is a physical constant, approximately equal to the most probable distance between the nucleus and the electron in a hydrogen atom in its ground state.

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Bound state

In quantum physics, a bound state is a special quantum state of a particle subject to a potential such that the particle has a tendency to remain localised in one or more regions of space.

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Cadmium

Cadmium is a chemical element with symbol Cd and atomic number 48.

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Cadmium selenide

Cadmium selenide is an inorganic compound with the formula CdSe.

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Cadmium sulfide

Cadmium sulfide is the inorganic compound with the formula CdS.

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Cadmium telluride

Cadmium telluride (CdTe) is a stable crystalline compound formed from cadmium and tellurium.

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Cadmium-free quantum dot

Quantum dots (QDs) are usually referred to semiconductor nanoparticles with a size less than 10 nm.

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Cancer

Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.

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Carbon quantum dots

Carbon quantum dots (CQDs, C-dots or CDs) are small carbon nanoparticles (less than 10 nm in size) with some form of surface passivation.

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Carrier generation and recombination

In the solid-state physics of semiconductors, carrier generation and recombination are processes by which mobile charge carriers (electrons and electron holes) are created and eliminated.

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CellSqueeze

Cell Squeeze® is the commercial name for a method for deforming a cell as it passes through a small opening, disrupting the cell membrane and allowing material to be inserted into the cell.

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Chalcogenide

A chalcogenide is a chemical compound consisting of at least one chalcogen anion and at least one more electropositive element.

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Chemical energy

In chemistry, chemical energy is the potential of a chemical substance to undergo a transformation through a chemical reaction to transform other chemical substances.

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Chemical potential

In thermodynamics, chemical potential of a species is a form of energy that can be absorbed or released during a chemical reaction or phase transition due to a change of the particle number of the given species.

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Chemical synthesis

Chemical synthesis is a purposeful execution of chemical reactions to obtain a product, or several products.

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CMOS

Complementary metal–oxide–semiconductor, abbreviated as CMOS, is a technology for constructing integrated circuits.

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Colloid

In chemistry, a colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.

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Combinatorial biology

In biotechnology, combinatorial biology is the creation of a large number of compounds (usually proteins or peptides) through technologies such as phage display.

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Core–shell semiconductor nanocrystal

Core–shell semiconducting nanocrystals (CSSNCs) are a class of materials which have properties intermediate between those of small, individual molecules and those of bulk, crystalline semiconductors.

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Coulomb

The coulomb (symbol: C) is the International System of Units (SI) unit of electric charge.

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Coulomb blockade

A Coulomb blockade will also be observed when making the device very small (like a quantum dot).

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Crystallite

A crystallite is a small or even microscopic crystal which forms, for example, during the cooling of many materials.

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Cytotoxicity

Cytotoxicity is the quality of being toxic to cells.

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Density of states

In solid-state and condensed matter physics, the density of states (DOS) of a system describes the number of states per interval of energy at each energy level available to be occupied.

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DNA-functionalized quantum dots

DNA-functionalization of quantum dots is the attachment of strands of DNA to the surface of a quantum dot.

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Dye

A dye is a colored substance that has an affinity to the substrate to which it is being applied.

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Electric potential

An electric potential (also called the electric field potential, potential drop or the electrostatic potential) is the amount of work needed to move a unit positive charge from a reference point to a specific point inside the field without producing any acceleration.

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Electrochemistry

Electrochemistry is the branch of physical chemistry that studies the relationship between electricity, as a measurable and quantitative phenomenon, and identifiable chemical change, with either electricity considered an outcome of a particular chemical change or vice versa.

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Electron

The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.

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Electron configuration

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.

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Electron hole

In physics, chemistry, and electronic engineering, an electron hole (often simply called a hole) is the lack of an electron at a position where one could exist in an atom or atomic lattice.

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Electron transfer

Electron transfer (ET) occurs when an electron relocates from an atom or molecule to another such chemical entity.

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Electron-beam lithography

Electron-beam lithography (often abbreviated as e-beam lithography) is the practice of scanning a focused beam of electrons to draw custom shapes on a surface covered with an electron-sensitive film called a resist (exposing).

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Embryogenesis

Embryogenesis is the process by which the embryo forms and develops.

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Energy conversion efficiency

Energy conversion efficiency (η) is the ratio between the useful output of an energy conversion machine and the input, in energy terms.

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Epitaxy

Epitaxy refers to the deposition of a crystalline overlayer on a crystalline substrate.

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Excited state

In quantum mechanics, an excited state of a system (such as an atom, molecule or nucleus) is any quantum state of the system that has a higher energy than the ground state (that is, more energy than the absolute minimum).

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Exciton

An exciton is a bound state of an electron and an electron hole which are attracted to each other by the electrostatic Coulomb force.

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Exocytosis

Exocytosis is a form of active transport in which a cell transports molecules (e.g., neurotransmitters and proteins) out of the cell (exo- + cytosis) by expelling them through an energy-dependent process.

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Förster resonance energy transfer

Förster resonance energy transfer (FRET), fluorescence resonance energy transfer (FRET), resonance energy transfer (RET) or electronic energy transfer (EET) is a mechanism describing energy transfer between two light-sensitive molecules (chromophores).

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Flow chemistry

In flow chemistry, a chemical reaction is run in a continuously flowing stream rather than in batch production.

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Fluorescence

Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation.

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Fluorescence intermittency

Fluorescence intermittency, or blinking, is the phenomenon of random switching between ON (bright) and OFF (dark) states of the emitter under its continuous excitation.

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Fluorescence spectroscopy

Fluorescence spectroscopy (also known as fluorometry or spectrofluorometry) is a type of electromagnetic spectroscopy that analyzes fluorescence from a sample.

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Fluorescent lamp

A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light.

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Fluorophore

A fluorophore (or fluorochrome, similarly to a chromophore) is a fluorescent chemical compound that can re-emit light upon light excitation.

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Genetic engineering

Genetic engineering, also called genetic modification or genetic manipulation, is the direct manipulation of an organism's genes using biotechnology.

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Graphene

Graphene is a semi-metal with a small overlap between the valence and the conduction bands (zero bandgap material).

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Heavy metals

Heavy metals are generally defined as metals with relatively high densities, atomic weights, or atomic numbers.

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Hybrid solar cell

Hybrid solar cells combine advantages of both organic and inorganic semiconductors.

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Hydrogel encapsulation of quantum dots

The behavior of quantum dots (QDs) in solution and their interaction with other surfaces is of great importance to biological and industrial applications, such as optical displays, animal tagging, anti-counterfeiting dyes and paints, chemical sensing, and fluorescent tagging.

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Immunology

Immunology is a branch of biology that covers the study of immune systems in all organisms.

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In vitro

In vitro (meaning: in the glass) studies are performed with microorganisms, cells, or biological molecules outside their normal biological context.

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In vivo

Studies that are in vivo (Latin for "within the living"; often not italicized in English) are those in which the effects of various biological entities are tested on whole, living organisms or cells, usually animals, including humans, and plants, as opposed to a tissue extract or dead organism.

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Indium arsenide

Indium arsenide, InAs, or indium monoarsenide, is a semiconductor composed of indium and arsenic.

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Indium phosphide

Indium phosphide (InP) is a binary semiconductor composed of indium and phosphorus.

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Inkjet printing

Inkjet printing is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper, plastic, or other substrates.

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Integrated circuit

An integrated circuit or monolithic integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small flat piece (or "chip") of semiconductor material, normally silicon.

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Ionic strength

The concept of ionic strength was first introduced by Lewis and Randall in 1921 while describing the activity coefficients of strong electrolytes.

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Kelvin

The Kelvin scale is an absolute thermodynamic temperature scale using as its null point absolute zero, the temperature at which all thermal motion ceases in the classical description of thermodynamics.

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Langmuir–Blodgett film

A Langmuir–Blodgett film contains one or more monolayers of an organic material, deposited from the surface of a liquid onto a solid by immersing (or emersing) the solid substrate into (or from) the liquid.

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Laser diode

A laser diode, (LD), injection laser diode (ILD), or diode laser is a semiconductor device similar to a light-emitting diode in which the laser beam is created at the diode's junction.

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Lateral quantum dot

A lateral quantum dot is a type of quantum dot made by imposing a small area of decreased potential in the two-dimensional electron gas (2DEG) by means of electrical gates such that electrons or electron holes are confined in the 2DEG plane.

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Lead selenide

Lead selenide (PbSe), or lead(II) selenide, a selenide of lead, is a semiconductor material.

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Lead sulfide

Lead sulfide refers to two compounds containing lead and sulfur.

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Lethal dose

In toxicology, the lethal dose (LD) is an indication of the lethal toxicity of a given substance or type of radiation.

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Ligand

In coordination chemistry, a ligand is an ion or molecule (functional group) that binds to a central metal atom to form a coordination complex.

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Light-emitting diode

A light-emitting diode (LED) is a two-lead semiconductor light source.

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Liquid crystal

Liquid crystals (LCs) are matter in a state which has properties between those of conventional liquids and those of solid crystals.

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Liquid-crystal display

A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals.

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Logic gate

In electronics, a logic gate is an idealized or physical device implementing a Boolean function; that is, it performs a logical operation on one or more binary inputs and produces a single binary output.

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Louis E. Brus

Louis E. Brus is the S. L. Mitchell Professor of Chemistry at Columbia University.

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Lymphocyte

A lymphocyte is one of the subtypes of white blood cell in a vertebrate's immune system.

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M13 bacteriophage

M13 is a virus that infects the bacterium Escherichia coli.

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Magnetic field

A magnetic field is a vector field that describes the magnetic influence of electrical currents and magnetized materials.

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Mass transfer

Mass transfer is the net movement of mass from one location, usually meaning stream, phase, fraction or component, to another.

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Materials science

The interdisciplinary field of materials science, also commonly termed materials science and engineering is the design and discovery of new materials, particularly solids.

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Medical imaging

Medical imaging is the technique and process of creating visual representations of the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology).

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Melting-point depression

Melting-point depression is the phenomenon of reduction of the melting point of a material with reduction of its size.

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Metastasis

Metastasis is a pathogenic agent's spread from an initial or primary site to a different or secondary site within the host's body; it is typically spoken of as such spread by a cancerous tumor.

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Microelectromechanical systems

Microelectromechanical systems (MEMS, also written as micro-electro-mechanical, MicroElectroMechanical or microelectronic and microelectromechanical systems and the related micromechatronics) is the technology of microscopic devices, particularly those with moving parts.

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Mie scattering

The Mie solution to Maxwell's equations (also known as the Lorenz–Mie solution, the Lorenz–Mie–Debye solution or Mie scattering) describes the scattering of an electromagnetic plane wave by a homogeneous sphere.

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Molecular beam epitaxy

Molecular beam epitaxy (MBE) is an epitaxy method for thin-film deposition of single crystals.

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Molecule

A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.

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Monochrome

Monochrome describes paintings, drawings, design, or photographs in one color or values of one color.

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Monomer

A monomer (mono-, "one" + -mer, "part") is a molecule that "can undergo polymerization thereby contributing constitutional units to the essential structure of a macromolecule".

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Multiple exciton generation

In solar cell research, carrier multiplication is the phenomenon wherein the absorption of a single photon leads to the excitation of multiple electrons from the valence band to conduction band.

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Nanoco

Nanoco Technologies Ltd.

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Nanocrystal

A nanocrystal is a material particle having at least one dimension smaller than 100 nanometres, based on quantum dots (a nanoparticle) and composed of atoms in either a single- or poly-crystalline arrangement.

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Nanocrystal solar cell

Nanocrystal solar cells are solar cells based on a substrate with a coating of nanocrystals.

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Nanometre

The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (m).

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Nanotechnology

Nanotechnology ("nanotech") is manipulation of matter on an atomic, molecular, and supramolecular scale.

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Nanotechnology (journal)

Nanotechnology is a peer-reviewed scientific journal published by IOP Publishing.

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Nanowire

A nanowire is a nanostructure, with the diameter of the order of a nanometer (10−9 meters).

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Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

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Near-field scanning optical microscope

Near-field scanning optical microscopy (NSOM/SNOM) is a microscopy technique for nanostructure investigation that breaks the far field resolution limit by exploiting the properties of evanescent waves.

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Normal distribution

In probability theory, the normal (or Gaussian or Gauss or Laplace–Gauss) distribution is a very common continuous probability distribution.

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OLED

An organic light-emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current.

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Ormosil

Ormosil is a shorthand phrase for organically modified silica or organically modified silicate.

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Particle in a box

In quantum mechanics, the particle in a box model (also known as the infinite potential well or the infinite square well) describes a particle free to move in a small space surrounded by impenetrable barriers.

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Peptide

Peptides (from Gr.: πεπτός, peptós "digested"; derived from πέσσειν, péssein "to digest") are short chains of amino acid monomers linked by peptide (amide) bonds.

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Periodic table

The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configuration, and recurring chemical properties, whose structure shows periodic trends.

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Philosophical Magazine

The Philosophical Magazine is one of the oldest scientific journals published in English.

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Photobleaching

In optics, photobleaching (sometimes termed fading) is the photochemical alteration of a dye or a fluorophore molecule such that it permanently is unable to fluoresce.

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Photocatalysis

In chemistry, photocatalysis is the acceleration of a photoreaction in the presence of a catalyst.

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Photodissociation

Photodissociation, photolysis, or photodecomposition is a chemical reaction in which a chemical compound is broken down by photons.

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Photolithography

Photolithography, also termed optical lithography or UV lithography, is a process used in microfabrication to pattern parts of a thin film or the bulk of a substrate.

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Photoluminescence

Photoluminescence (abbreviated as PL) is light emission from any form of matter after the absorption of photons (electromagnetic radiation).

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Physical chemistry

Physical Chemistry is the study of macroscopic, atomic, subatomic, and particulate phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibrium.

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Physics Today

Physics Today is the membership magazine of the American Institute of Physics that was established in 1948.

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Plum pudding model

The plum pudding model is one of several scientific models of the atom.

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Potential well

A potential well is the region surrounding a local minimum of potential energy.

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Precursor (chemistry)

In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound.

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Pseudopotential

In physics, a pseudopotential or effective potential is used as an approximation for the simplified description of complex systems.

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Quantum computing

Quantum computing is computing using quantum-mechanical phenomena, such as superposition and entanglement.

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Quantum cryptography

Quantum cryptography is the science of exploiting quantum mechanical properties to perform cryptographic tasks.

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Quantum dot

Quantum dots (QD) are very small semiconductor particles, only several nanometres in size, so small that their optical and electronic properties differ from those of larger particles.

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Quantum dot display

A quantum dot display is a display device that uses quantum dots (QD), semiconductor nanocrystals which can produce pure monochromatic red, green, and blue light.

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Quantum dot laser

A quantum dot laser is a semiconductor laser that uses quantum dots as the active laser medium in its light emitting region.

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Quantum efficiency

The term quantum efficiency (QE) may apply to incident photon to converted electron (IPCE) ratio, of a photosensitive device or it may refer to the TMR effect of a Magnetic Tunnel Junction.

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Quantum entanglement

Quantum entanglement is a physical phenomenon which occurs when pairs or groups of particles are generated, interact, or share spatial proximity in ways such that the quantum state of each particle cannot be described independently of the state of the other(s), even when the particles are separated by a large distance—instead, a quantum state must be described for the system as a whole.

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Quantum information science

Quantum information science is an area of study based on the idea that information science depends on quantum effects in physics.

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Quantum point contact

A quantum point contact (QPC) is a narrow constriction between two wide electrically conducting regions, of a width comparable to the electronic wavelength (nano- to micrometer).

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Quantum well

A quantum well is a potential well with only discrete energy values.

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Quantum wire

In mesoscopic physics, a quantum wire is an electrically conducting wire in which quantum effects influence the transport properties.

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Quantum yield

The quantum yield (Φ) of a radiation-induced process is the number of times a specific event occurs per photon absorbed by the system.

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Qubit

In quantum computing, a qubit or quantum bit (sometimes qbit) is a unit of quantum information—the quantum analogue of the classical binary bit.

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Random matrix

In probability theory and mathematical physics, a random matrix is a matrix-valued random variable—that is, a matrix in which some or all elements are random variables.

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Reactive oxygen species

Reactive oxygen species (ROS) are chemically reactive chemical species containing oxygen.

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Redox

Redox (short for reduction–oxidation reaction) (pronunciation: or) is a chemical reaction in which the oxidation states of atoms are changed.

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Reduced mass

In physics, the reduced mass is the "effective" inertial mass appearing in the two-body problem of Newtonian mechanics.

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Refractive index

In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.

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Relative permittivity

The relative permittivity of a material is its (absolute) permittivity expressed as a ratio relative to the permittivity of vacuum.

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Second-harmonic generation

Second harmonic generation (also called frequency doubling or SHG) is a nonlinear optical process in which two photons with the same frequency interact with a nonlinear material, are "combined", and generate a new photon with twice the energy of the initial photons (equivalently, twice the frequency and half the wavelength).

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Self-assembled monolayer

Self-assembled monolayers (SAM) of organic molecules are molecular assemblies formed spontaneously on surfaces by adsorption and are organized into more or less large ordered domains.

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Semiconductor

A semiconductor material has an electrical conductivity value falling between that of a conductor – such as copper, gold etc.

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Semiconductor device fabrication

Semiconductor device fabrication is the process used to create the integrated circuits that are present in everyday electrical and electronic devices.

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Silicon dioxide

Silicon dioxide, also known as silica (from the Latin silex), is an oxide of silicon with the chemical formula, most commonly found in nature as quartz and in various living organisms.

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Solar cell

A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon.

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Solar fuel

A solar fuel is a synthetic chemical fuel produced directly/indirectly from solar energy sunlight/solar heat through photochemical/photobiological (i.e., artificial photosynthesis, experimental as of 2013), thermochemical(i.e. through the use of solar heat supplied by), and electrochemical reaction.

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Spectral color

A spectral color is a color that is evoked in a normal human by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light.

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Spectroscopy

Spectroscopy is the study of the interaction between matter and electromagnetic radiation.

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Spectrum

A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum.

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Spin coating

Spin coating is a procedure used to deposit uniform thin films to flat substrates.

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Standard conditions for temperature and pressure

Standard conditions for temperature and pressure are standard sets of conditions for experimental measurements to be established to allow comparisons to be made between different sets of data.

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Stem cell

Stem cells are biological cells that can differentiate into other types of cells and can divide to produce more of the same type of stem cells.

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Strain (chemistry)

In chemistry, a molecule experiences strain when its chemical structure undergoes some stress which raises its internal energy in comparison to a strain-free reference compound.

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Stranski–Krastanov growth

Stranski–Krastanov growth (SK growth, also Stransky-Krastanov or Stranski-Krastanow) is one of the three primary modes by which thin films grow epitaxially at a crystal surface or interface.

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Superatom

A superatom is any cluster of atoms that seem to exhibit some of the properties of elemental atoms.

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Surface plasmon resonance

Surface plasmon resonance (SPR) is the resonant oscillation of conduction electrons at the interface between negative and positive permittivity material stimulated by incident light.

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Surfactant

Surfactants are compounds that lower the surface tension (or interfacial tension) between two liquids, between a gas and a liquid, or between a liquid and a solid.

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Technetium-99m

Technetium-99m is a metastable nuclear isomer of technetium-99 (itself an isotope of technetium), symbolized as 99mTc, that is used in tens of millions of medical diagnostic procedures annually, making it the most commonly used medical radioisotope.

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Thermodynamics

Thermodynamics is the branch of physics concerned with heat and temperature and their relation to energy and work.

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Thin film

A thin film is a layer of material ranging from fractions of a nanometer (monolayer) to several micrometers in thickness.

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Thomson problem

The objective of the Thomson problem is to determine the minimum electrostatic potential energy configuration of N electrons constrained to the surface of a unit sphere that repel each other with a force given by Coulomb's law.

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Tobacco mosaic virus

Tobacco mosaic virus (TMV) is a positive-sense single stranded RNA virus, genus tobamovirus that infects a wide range of plants, especially tobacco and other members of the family Solanaceae.

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Toxicity

Toxicity is the degree to which a chemical substance or a particular mixture of substances can damage an organism.

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Transistor

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power.

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Trojan wave packet

A trojan wave packet is a wave packet that is nonstationary and nonspreading.

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Ultraviolet

Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.

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Virus

A virus is a small infectious agent that replicates only inside the living cells of other organisms.

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Wetting layer

In experimental physics, a wetting layer is an initial layer of atoms that is epitaxially grown on a surface upon which self-assembled quantum dots or thin films are created.

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XBR (Sony)

XBR is Sony’s highest performance series of BRAVIA LCD, OLED, and formerly, Trinitron CRT and WEGA Plasma televisions featuring advanced features and progressive industrial design.

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Zero-dimensional space

In mathematics, a zero-dimensional topological space (or nildimensional) is a topological space that has dimension zero with respect to one of several inequivalent notions of assigning a dimension to a given topological space.

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Zinc sulfide

Zinc sulfide (or zinc sulphide) is an inorganic compound with the chemical formula of ZnS.

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Artificial atom, Nanocrystallites, Q-LED, QD-LED, Quantum Dot, Quantum Dots, Quantum dots, Semiconductor nanocrystal.

References

[1] https://en.wikipedia.org/wiki/Quantum_dot

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