White Light-Emitting Diodes Based on Ultrasmall CdSe Nanocrystal Electroluminescence
- 11 January 2010
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 10 (2) , 573-576
Abstract
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.Keywords
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