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基于高流动性半导体混合物的有机场效应晶体管的缩小,用于高频操作

Tommaso Losi¹, Fabrizio Antonio Viola^1,2, Elda Sala^1,3

¹Center for Nano Science and Technology, Istituto Italiano di Tecnologia, Via Rubattino 81, Milano, 20134, Italy.

|August 6, 2024

概括

高性能有机电子产品利用小分子/聚合物混合物来实现溶液可加工性和电荷传输. 这项研究将高性能混合物集成到有机场效应晶体管 (OFET) 中,实现23MHz的过渡频率.

科学领域:

有机电子学有机电子学
材料科学是一种材料科学.
半导体物理半导体物理

背景情况:

小分子/聚合物半导体混合物提供解决方案可加工性和优良的电荷传输.
目前的局限性包括充电注入问题和不适合高频应用的设备架构.
缩小晶体管尺寸对于高频性能至关重要.

研究的目的:

将高性能小分子/聚合物混合物集成到有机场效应晶体管 (OFET) 中.
通过解决充电注入和工作电压限制,使高频应用成为可能.
为了证明物联网应用中低成本,高速打印电子产品的潜力.

主要方法:

2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT) 和 poly(indacenodithiophene-co-benzothiadiazole) (C16IDT-BT) 混合物融入OFETs. 的整合. 在OFETs. 中,OFETs. 在OFETs中,OFETs. 在OFETs中,OFETs. 在OFETs中,OFETs. 在OFETs中,OFETs. 在OFETs中,OFETs. 在OFETs中.
实施分子兴奋剂来降低接触电阻.
使用高电容介电堆来降低工作电压.

主要成果:

在具有短通道长度 (1.3μm) 的OFET中,在-8V时达到23MHz的过渡频率.
宽度正常化的接触电阻通过分子兴奋剂降低到260 Ωcm.
在短通道装置中保留了3cm2/Vs的表面场效应移动性.
运行电压降低到10V以下,减轻自我加热问题.

结论:

成功地将高性能混合物集成到缩小规模的OFET中,使得高频操作成为可能.
分子兴奋剂和高电容介电物是克服性能限制的关键.
代表了物联网中低成本,高速打印电子产品的重大进步.

关键词:

兴奋剂的使用兴奋剂的使用的高频晶体管.有机电子产品有机电子产品有机半导体有机半导体有机晶体管有机晶体管

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