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We present an electrical characterization of the organic field-effect transistor with purified and non-purified pentacene by using in situ and real time measurements. The field-effect phenomenon was observed at the thickness of 1.5nm (approximately one monolayer of pentacene) for purified pentacene, as compared to 3.0nm for the non-purified counterpart. Moreover, the hole mobility is improved from...
The intrinsic hysteresis behavior of a pentacene-based organic thin-film transistor (OTFT) was characterized through home-designed in-situ electrical measurement. The device can measure an intrinsic hysteresis after the device's fabrication under vacuum. In addition, the same hysteresis and electrical properties were observed when venting a nitrogen gas. Compared with the measurement condition of...
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