Liwei Shang

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An all-organic memory device based on a copper phthalocyanine (CuPc) thin-film transistor (TFT) using gold nanocrystals embedded in a polyimide gate dielectric is demonstrated. Both the gate dielectric and the active semiconductor layer are organic materials. Discrete gold nanocrystals are adopted as the charge storage medium. Under proper gate bias, gold(More)
High and random voltages are big challenges for practical applications of organic thin film transistors (OTFTs). Herein, a route to achieve devices with both low operating voltages (V<inf>op</inf>) and tunable threshold voltages (V<inf>TH</inf>) was proposed. The V<inf>op</inf> was reduced to be less 3 V without lowering the mobility and the ratio of on/off(More)
Under white-light irradiation, thin film transistors based on copper phthalocyanine (CuPc) exhibited obvious hysteresis effects when applying bi-directional sweeping gate voltage, the hysteresis window comes up to 32 V. This hysteresis effect is the result of those accumulated photogenerated carriers trapped in the interface, which proposed a feasible way(More)
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