White Light-Emitting Diodes Based on Ultrasmall CdSe Nanocrystal Electroluminescence

被引：162

作者：

Schreuder, Michael A. ^{[1
]}

Xiao, Kai ^{[6
]}

Ivanov, Ilia N. ^{[6
]}

Weiss, Sharon M. ^{[2
]}

Rosenthal, Sandra J. ^{[1
,3
,4
,5
]}

机构：

[1] Vanderbilt Univ, Dept Chem, Nashville, TN 37235 USA

[2] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA

[3] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[4] Vanderbilt Univ, Dept Pharmacol, Nashville, TN 37235 USA

[5] Vanderbilt Univ, Dept Chem & Biomol Engn, Nashville, TN 37235 USA

[6] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA

来源：

NANO LETTERS | 2010年 / 10卷 / 02期

关键词：

Ultrasmall nanocrystal; electroluminescence; white-light; LED; EMISSION; DYNAMICS; MONOLAYERS;

D O I：

10.1021/nl903515g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：573 / 576

页数：4

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