在有机发光电化学晶体管中的p-n连接的空间控制
Jiang Liu1, Isak Engquist, Xavier Crispin
1Department of Science and Technology, Linköping University, SE-601 74 Norrköping, Sweden.
Journal of the American Chemical Society
|December 23, 2011
概括
研究人员通过合并发光电化学电池 (LEC) 和有机电化学晶体管 (OECT) 来开发了一种新型发光电化学晶体管 (LET). 这种新设备允许可调节的光发射和电子控制,为先进的光源铺平了道路.
科学领域:
- 有机电子学有机电子学
- 半导体器件是指半导体器件.
- 光电学是指光电子产品.
背景情况:
- 低压有机电化学发光电池 (LEC) 和晶体管 (OECT) 为可打印光源提供了强大的架构.
- 在LEC中,有机半导体通道内的p-n连接是光发射的关键,由电化学剂形成.
- OECT通过门电极控制兴奋剂水平,从而影响导电性.
研究的目的:
- 将LEC和OECT的功能合并到一个单一的设备中:发光电化学晶体管 (LET).
- 为了证明发射 p-n 交叉点位置和 LET 中的电流的门控制调制.
- 探索可调节光源和有机设备中的电子功能的新可能性.
主要方法:
- 制造一种新型设备,集成LEC和OECT的原则.
- 应用门偏差来调节电化学兴奋剂,并控制发光p-n连接的位置.
- 光发射特性和晶体管性能的表征,包括开/关比和传导率.
主要成果:
- 成功演示了一种发光的电化学晶体管在4V工作.
- 可控地将排放区移动在500微米的电极间隙上,使用4V门偏差.
- 晶体管的运行显示了10100的开/关比, -2.3V的门电压,和1.43μS之间的传导率.
结论:
- 开发的LET集成了光发射与晶体管功能,使可调节的光源成为可能.
- 这种设备架构为新的实验设置和具有增强电子控制的有机发光设备开辟了道路.
- 合并LEC和OECT原则为先进的有机光电子提供了一个多功能平台.
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