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Colloidal Quantum Dot, IR LEDs Display Highest Efficiency

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A composite material that is a strong light emitter as well as an efficient charge conductor — colloidal quantum dot (CQD) LEDs — has been developed by a team at the Institute of Photonic Sciences (ICFO). The nanocomposite system comprising IR CQDs is low-cost and can be integrated with CMOS, in addition to being highly efficient. The CQD composite structure was engineered at the supra-nanocrystalline level to achieve an extremely low electronic defect density. To suppress electronic defects in CQD solids, the researchers created a matrix in which they embedded the emitting...Read full article

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