Thin films of polymer blends consisting of a crystalline small-molecular semiconductor, 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene (C8-BTBT), and an amorphous polymer semiconductor, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA), are studied and applied to organic electrolyte-gated transistors (OEGTs). The compositions can be easily controlled by adjusting the mixing ratios of the solutions in chloroform. In the thin-film state, PTAA acts as a structural matrix and a charge-transport bridge for C8-BTBT grains. The C8-BTBT:PTAA blends have a compositional effect on the thin-film properties and performance of OEGTs. As a result, the C8-BTBT:PTAA blend films with weight ratios of 8:2 exhibit a hole mobility twice that of pristine C8-BTBT films. Moreover, OEGTs based on the C8-BTBT:PTAA blend exhibit better charge-transport properties on flexible plastic substrates under bending conditions, compared to flat devices.

中文翻译：

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基于晶体C8-BTBT和非晶PTAA的聚合物共混薄膜的柔性有机电解质门控晶体管

聚合物共混物的薄膜，由结晶的小分子半导体，2,7-二辛基[1]苯并噻吩并[3,2-b] [1]苯并噻吩（C8-BTBT）和无定形聚合物半导体，聚[bis（ [4-苯基）（2,4,6-三甲基苯基）胺]（PTAA）被研究并应用于有机电解质门控晶体管（OEGT）。通过调节溶液在氯仿中的混合比例可以容易地控制组成。在薄膜状态下，PTAA充当C8-BTBT晶粒的结构基质和电荷传输桥。C8-BTBT：PTAA共混物对OEGT的薄膜性能和性能具有成分影响。结果，重量比为8：2的C8-BTBT：PTAA共混膜表现出的空穴迁移率是原始C8-BTBT膜的两倍。此外，基于C8-BTBT的OEGT：