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首页> 外文会议>Flexible Electronics 2004 -Materials and Device Technology >Conducting Polypyrrole-based Field Effect Transistors Fabricated by Spin Coating and Inkjet Printing
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Conducting Polypyrrole-based Field Effect Transistors Fabricated by Spin Coating and Inkjet Printing

机译：旋涂和喷墨印刷制造的基于聚吡咯的场效应晶体管

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摘要

Spin coating and inkjet printing are two major deposition techniques for flexible polymer plastic electronics. This paper presents polymer field effect transistors (FET) fabricated by these two techniques using conducting poylmer polypyrole (PPy) as a semiconductor material. These thin film polymer field effect transistors operate in the depletion mode. The field effect mobilities are calculated to be 0.045 cm V~(-1)s~(-1) and 0.036 cm~2 V~(-1)s~(-1), and transconductances are 0.104 μS and 0.096 μS at saturation region of the Ⅰ-Ⅴ curves for the spin coated and the inkjet printed transistors, respectively. The measured turn-off threshold voltage is around 20 V for both the spin coated and inkjet printed PPy FET transistors. The device performance of the spin coated transistors is slightly better than that of the inkjet printed transistors. This is mainly due to high surface roughness of the printed polymer film and printed dot boundaries, leading to low charge carrier mobility in the printed polymer FET transistors.
机译：旋涂和喷墨印刷是柔性聚合物塑料电子产品的两种主要沉积技术。本文介绍了使用导电聚合物聚吡咯（PPy）作为半导体材料通过这两种技术制造的聚合物场效应晶体管（FET）。这些薄膜聚合物场效应晶体管以耗尽模式工作。场效应迁移率经计算为0.045 cm V〜（-1）s〜（-1）和0.036 cm〜2 V〜（-1）s〜（-1），饱和时跨导为0.104μS和0.096μS分别为旋涂晶体管和喷墨印刷晶体管的Ⅰ-Ⅴ曲线区域。对于旋涂和喷墨印刷的PPy FET晶体管，测得的关断阈值电压约为20V。旋涂晶体管的器件性能比喷墨印刷晶体管的器件性能稍好。这主要是由于印刷聚合物膜的高表面粗糙度和印刷点边界，导致印刷聚合物FET晶体管的载流子迁移率低。

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