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Solution-Processed Flexible Organic Ferroelectric Phototransistor
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-12-05 00:00:00 , DOI: 10.1021/acsami.7b13709
Qiang Zhao 1, 2 , Hanlin Wang 1, 2 , Lang Jiang 1 , Yonggang Zhen 1 , Huanli Dong 1 , Wenping Hu 1, 3
Affiliation  

In this article, we demonstrate ferroelectric insulator, P(VDF-TrFE), can be integrated with red light sensitive polymeric semiconductor, P(DPP-TzBT), toward ferroelectric organic phototransistors (OPTs). This ferroelectricity-modulated phototransistor possesses different nonvolatile and tunable dark current states due to P(VDF-TrFE)’s remnant polarization. As a result, the OPT is endowed with a tunable dark current level ranging from 1 nA to 100 nA. Once the OPT is programmed or electrically polarized, its photo-to-dark (signal-to-noise) ratio can be “flexible” during photodetection process, without gate bias application. This kind of organic ferroelectric phototransistor has great potential in detecting wide ranges of light signals with good linearity. Moreover, its tuning mechanism discussed in this work can be helpful to understand the operation mechanism of organic phototransistor (OPT). It can be promising for novel photodetection application in plastic electronic devices.

中文翻译:

溶液处理的柔性有机铁电光电晶体管

在本文中,我们演示了铁电绝缘体P(VDF-TrFE)可以与红光敏感的聚合物半导体P(DPP-TzBT)集成为铁电有机光电晶体管(OPT)。由于P(VDF-TrFE)的剩余极化,该铁电调制光电晶体管具有不同的非易失性和可调暗电流状态。结果,OPT的可调暗电流范围为1 nA至100 nA。一旦对OPT进行了编程或电极化,则在光检测过程中其光暗比(信噪比)可以是“灵活的”,而无需施加栅极偏置。这种有机铁电光电晶体管在检测线性度良好的宽范围光信号方面具有巨大潜力。而且,这项工作中讨论的调整机制有助于理解有机光电晶体管(OPT)的工作机制。对于塑料电子设备中新颖的光电检测应用,它可能是有前途的。
更新日期:2017-12-05
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