期刊
ADVANCED SCIENCE
卷 4, 期 12, 页码 -出版社
WILEY
DOI: 10.1002/advs.201700442
关键词
interfacial effect; organic field-effect transistor; photosensor; polymer dielectric; synaptic-emulating devices
资金
- National Nature Science Foundation of China [51373123, 51603151, 51741302]
- National Key Research and Development Program of China [2017YFA0103900, 2017YFA0103904]
- Science & Technology Foundation of Shanghai [17JC1404600]
- Fundamental Research Funds for the Central Universities of China
- State Key Laboratory of ASIC System [2016KF001]
Polymer dielectrics in organic field-effect transistors (OFETs) are essential to provide the devices with overall flexibility, stretchability, and printability and simultaneously introduce charge interaction on the interface with organic semiconductors (OSCs). The interfacial effect between various polymer dielectrics and OSCs significantly and intricately influences device performance. However, understanding of this effect is limited because the interface is buried and the interfacial charge interaction is difficult to stimulate and characterize. Here, this challenge is overcome by utilizing illumination to stimulate the interfacial effect in various OFETs and to characterize the responses of the effect by measuring photoinduced changes of the OFETs performances. This systemic investigation reveals the mechanism of the intricate interfacial effect in detail, and mathematically explains how the photosensitive OFETs characteristics are determined by parameters including polar group of the polymer dielectric and the OSC side chain. By utilizing this mechanism, performance of organic electronics can be precisely controlled and optimized. OFETs with strong interfacial effect can also show a signal additivity caused by repeated light pulses, which is applicable for photostimulated synapse emulator. Therefore, this work enlightens a detailed understanding on the interface effect and provides novel strategies for optimizing OFET photosensory performances.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据