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.
Original language | English |
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Pages (from-to) | 573-576 |
Number of pages | 4 |
Journal | Nano Letters |
Volume | 10 |
Issue number | 2 |
DOIs | |
State | Published - Feb 10 2010 |
Keywords
- Electroluminescence
- Led
- Ultrasmall nanocrystal
- White-light