White light-emitting diodes based on ultrasmall CdSe nanocrystal electroluminescence

Michael A. Schreuder, Kai Xiao, Ilia N. Ivanov, Sharon M. Weiss, Sandra J. Rosenthal

Research output: Contribution to journalArticlepeer-review

171 Scopus citations

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 languageEnglish
Pages (from-to)573-576
Number of pages4
JournalNano Letters
Volume10
Issue number2
DOIs
StatePublished - Feb 10 2010

Keywords

  • Electroluminescence
  • Led
  • Ultrasmall nanocrystal
  • White-light

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