White light-emitting diodes based on ultrasmall CdSe nanocrystal electroluminescence.

Schreuder MA, Xiao K, Ivanov IN, Weiss SM, Rosenthal SJ
Nano Lett. 2010 10 (2): 573-6

PMID: 20063863 · DOI:10.1021/nl903515g

We report white light-emitting diodes fabricated with ultrasmall CdSe nanocrystals, which demonstrate electroluminescence from a size of nanocrystals (<2 nm) previously thought to be unattainable. These LEDs have excellent color characteristics, defined by their pure white CIE color coordinates (0.333, 0.333), correlated color temperatures of 5461-6007 K, and color rendering indexes as high as 96.6. The effect of high voltage on the trap states responsible for the white emission is also described.

MeSH Terms (10)

Cadmium Compounds Crystallization Electrochemistry Equipment Design Light Luminescence Nanoparticles Nanotechnology Selenium Compounds Temperature

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