Electroluminescence of cadmium selenium nanocrystals synthesized in aqueous solution

被引：5

作者：

Gao, Yinhao ^{[1
]}

Liang, Chunjun ^{[1
]}

Tang, Aiwei ^{[1
]}

Teng, Feng ^{[1
]}

Li, Dan ^{[1
]}

Deng, Zhenbo ^{[1
]}

Huang, Shihua ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Key Lab Luminescence & Opt Informat, Minist Educ, Inst Optoelect Technol, Beijing 100044, Peoples R China

来源：

JOURNAL OF LUMINESCENCE | 2007年 / 122卷

基金：

中国国家自然科学基金;

关键词：

CdSe; aqueous solution; photoluminescence; electroluminescence;

D O I：

10.1016/j.jlumin.2006.01.249

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Cadmium selenium (CdSe) nanocrystals in aqueous system upon addition of mercaptoacetic acid as a stabilizer were synthesized. These were observed in a transmission electron microscope (TEM) and photouminescence (PL) in aqueous solution were further measured to confirm its nanometer scale size. A surfactant was used to transfer the nanocrystals from the aqueous solution to organic solvent so that both CdSe and poly(N-vinylcarbazole) (PVK) were able to mix sufficiently in organic solvent. A multi-layer structured electroluminescence device was fabricated using a CdSe:PVK thin film as the emitting layer. PL and electroluminescence (EL) properties of the CdSe:PVK film were studied. It was found that CdSe dominated the emission in EL spectra and PVK served primarily as a hole injection and transport rnedia. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：646 / 648

页数：3

共 7 条

[1] Electroluminescence from single monolayers of nanocrystals in molecular organic devices [J].