Nanoparticle-induced negative differential resistance and memory effect in polymer bistable light-emitting device

被引：72

作者：

Tseng, RJ ^{[1
]}

Ouyang, J ^{[1
]}

Chu, CW ^{[1
]}

Huang, JS ^{[1
]}

Yang, Y ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 12期

关键词：

D O I：

10.1063/1.2187407

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Recently, electrical bistability was demonstrated in polymer thin films incorporated with metal nanoparticles [J. Ouyang, C. W. Chu, C. R. Szmanda, L. P. Ma, and Y. Yang, Nat. Mater. 3, 918 (2004)]. In this letter, we show the evidence that electrons are the dominant charge carriers in these bistable devices. Direct integration of bistable polymer layer with a light-emitting polymer layer shows a unique light-emitting property modulated by the electrical bistability. A unique negative differential resistance induced by the charged gold nanoparticles is observed due to the charge trapping effect from the nanoparticles when interfaced with the light-emitting layer.

引用

页数：3

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