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Quantum dots emit vivid colours determined purely by physical size
Nanometer sized semiconductor particles tune emission light wavelengths by particle radius
Quantum dots are semiconductor nanocrystals measuring just a few nanometres across. Because their physical dimensions are smaller than the quantum excitonic radius, electron energy levels become quantized due to spatial confinement. Larger quantum dots emit longer red wavelengths when excited by light, while smaller dots emit shorter blue wavelengths.
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Tags: materials, quantum dots, nanotechnology
Quantum dots emit vivid colours determined purely by physical size: the short answers
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