Quantum dots, SEMs

Quantum dots, SEMs

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Credit: VERMA/NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY/SCIENCE PHOTO LIBRARY

Caption: Quantum dots. Coloured scanning electron micrograph (SEM) of quantum dots. Quantum dots are nanocrystals of semiconductor material that emit photons when excited. The size of the quantum dot can be tuned during manufacturing to produce a certain wavelength of photon emission. These dots were produced using electron beam lithography and etching. This method allows more control over the shaping and positioning the quantum dots than conventional crystal growth methods. Quantum dots have a number of applications including use in light emitting diodes (LEDs), quantum computing, solar panels and labelling biological tissue.

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Keywords: colored, coloured, dots, electron beam lithography, electronic, etching, material, micrographs, nano, nanocrystal, nanocrystals, nanotechnology, optics, photon emitting, physical, physics, quantum communications, quantum confinement, quantum dot, row, scanning electron micrograph, scanning electron microscope, sem, semiconductor, technological, technology

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