Extremely stretchable all-carbon-nanotube transistor on flexible and transparent substrates
作者： Minggang Xia , Zhaofang Cheng , Jinyun Han , Shengli Zhang
DOI: 10.1063/1.4897528
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摘要: The response of carbon-nanotube (CNT) transistors to large tensile strains has not been studied because lack stretchable devices. In this letter, we fabricate extremely single-wall CNT (SWCNT) conductive coatings on flexible and transparent elastomer substrates. We then measure the mechanical electrical properties found excellent stretchability (Poisson ratio ≈ 0.31). sheet resistances remain largely unchanged under a strain. construct an active transistor SWCNT thin films, which serve as channel electrodes, with polydimethylsiloxane film gate dielectric layer. exhibits stability, showing no noticeable change (less than 5%) in performance up strain 22.5%. thin-film current on–off ratio ∼50 field-effect mobility ∼24 cm2 V−1 s−1, 75% transmissivity visible wavelength. also that increases increased stretch strain, while initially decreases
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