Inkjet printing short-channel polymer transistors with high-performance and ultrahigh photoresponsivity.

Wang, Hanlin; Cheng, Cheng; Zhang, Lei; Liu, Hongtao; Zhao, Yan; Guo, Yunlong; Hu, Wenping; Yu, Gui et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

Inkjet-printed short-channel polymer transistors exhibit a high performance (μavg = 1.20 cm(2) V(-1) s(-1) ). With a 50 μm orifice nozzle, polymer transistors with a sub-micrometer (700 nm) channel length are mass-fabricated with good uniformity and reproducibility. In addition, owing to the device geometry, an ultrahigh photoresponsivity up to 10(6) A W(-1) is achieved, which realizes economical, lithography-free photodetectors.

Medical subject headings