Electrical bistable devices using composites of zinc sulfide nanoparticles and poly-（N-vinylcarbazole）

N-dodecanethiol capped zinc sulfide（Zn S） nanocrystals were synthesized by the one-pot approach and blended with poly（N-vinylcarbazole）（PVK） to fabricate electrical bistable devices. The corresponding devices did exhibit electrical bistability and negative differential resistance（NDR） effects. A lar...

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Published in中国物理B：英文版 no. 3; pp. 298 - 301
Main Author 曹亚鹏 胡煜峰 李剑焘 叶海航 吕龙锋 宁宇 鲁启鹏 唐爱伟 娄志东 侯延冰 滕枫
Format Journal Article
LanguageEnglish
Published 2015
Subjects
N-乙烯基咔唑
复合材料
电双稳态
电气
硫化锌纳米颗粒
纳米晶体
装置
负微分电阻
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Summary:N-dodecanethiol capped zinc sulfide（Zn S） nanocrystals were synthesized by the one-pot approach and blended with poly（N-vinylcarbazole）（PVK） to fabricate electrical bistable devices. The corresponding devices did exhibit electrical bistability and negative differential resistance（NDR） effects. A large ON/OFF current ratio of 104 at negative voltages was obtained by applying different amplitudes of sweeping voltage. The observed conductance switching and the negative differential resistance are attributed to the electric-field-induced charge transfer between the nanocrystals and the polymer,and the charge trapping/detrapping in the nanocrystals.
Bibliography:N-dodecanethiol capped zinc sulfide（Zn S） nanocrystals were synthesized by the one-pot approach and blended with poly（N-vinylcarbazole）（PVK） to fabricate electrical bistable devices. The corresponding devices did exhibit electrical bistability and negative differential resistance（NDR） effects. A large ON/OFF current ratio of 104 at negative voltages was obtained by applying different amplitudes of sweeping voltage. The observed conductance switching and the negative differential resistance are attributed to the electric-field-induced charge transfer between the nanocrystals and the polymer,and the charge trapping/detrapping in the nanocrystals.
11-5639/O4
Cao Ya-Peng, Hu Yu-Feng, Li Jian-Tao, Ye Hai-Hang, Lti Long-Feng, Ning Yu, Lu Qi-Peng, Tang Ai-Wei, Lou Zhi-Dong, Hou Yan-Bing, and Teng Feng（ a） Key Laboratory of Luminescence and Optical Information, Ministry of Education; Institute of Optoelectronic Technology, Beijing 2iaotong University, Beijing 100044, China; b） Department of Chemistry, School of Science, Beijing Jiaotong University, Beijing 100044, China
electrical bistable devices,ON/OFF current ratio,electric-field-induced charge transfer,trapping/detrapping
ISSN:1674-1056
2058-3834