Efficient near-infrared polymer nanocrystat light-emitting diodes

被引：1221

作者：

Tessler, N ^{[1
]}

Medvedev, V

Kazes, M

Kan, SH

Banin, U

机构：

[1] Technion Israel Inst Technol, Dept Elect Engn, Ctr Microelect, IL-32000 Haifa, Israel

[2] Technion Israel Inst Technol, Commun & Informat Technol Ctr, IL-32000 Haifa, Israel

[3] Hebrew Univ Jerusalem, Inst Chem, IL-91904 Jerusalem, Israel

[4] Hebrew Univ Jerusalem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel

来源：

SCIENCE | 2002年 / 295卷 / 5559期

关键词：

D O I：

10.1126/science.1068153

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Conjugated polymers and indium arsenide-based nanocrystals were used to create near-infrared plastic light-emitting diodes. Emission was tunable from 1 to 1.3 micrometers-a range that effectively covers the short-wavelength telecommunications band-by means of the quantum confinement effects in the nanocrystals. The external efficiency value (photons out divided by electrons in) is similar to0.5% (that is, >1% internal) and is mainly limited by device architecture. The near-infrared emission did not overlap the charge-induced absorption bands of the polymer.

引用

页码：1506 / 1508

页数：3

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