Optical properties and electrical bistability of CdS nanoparticles synthesized in dodecanethiol

被引：33

作者：

Tang, Aiwei ^{[1
,2
]}

Teng, Feng ^{[1
]}

Hou, Yanbing ^{[1
]}

Wang, Yongsheng ^{[1
]}

Tan, Furui ^{[2
]}

Qu, Shengchun ^{[2
]}

Wang, Zhanguo ^{[2
]}

机构：

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

[2] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 16期

关键词：

LIGHT-EMITTING-DIODES; NANOCRYSTALS; THERMOLYSIS;

D O I：

10.1063/1.3402770

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We reported the synthesis of CdS semiconductor nanoparticles using a simple one-pot reaction by thermolysis of cadmium acetylacetonate in dodecanethiol. Optical measurements of the as-obtained CdS nanoparticles revealed that their optical properties were closely related to surface effects. Based upon the cocktail of poly (N-vinylcarbazole) (PVK) and CdS nanoparticles, a bistable device was fabricated by a simple solution processing technique. Such a device exhibited a remarkable electrical bistability, which was attributed to the electric field-assisted charge transfer between PVK and the CdS nanoparticles capped by dodecaethiol. The conduction mechanism changed from an injection-controlled current to a bulk-controlled one during switching from OFF-state to ON-state. (C) 2010 American Institute of Physics. [doi:10.1063/1.3402770]

引用

页数：3

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