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  • Title: Performance Enhancement of ZITO Thin-Film Transistors via Graphene Bridge Layer by Sol-Gel Combustion Process.
    Author: Zhang J, Dong P, Gao Y, Sheng C, Li X.
    Journal: ACS Appl Mater Interfaces; 2015 Nov 04; 7(43):24103-9. PubMed ID: 26473579.
    Abstract:
    In this article, we reported the stacked structure zinc-indium-tin oxide (ZITO) thin-film transistors (TFTs) with graphene nanosheets (GNSs) prepared by solution process. GNSs were used as bridge layer between dual-ZITO layers. The transmission of stacked ZITO/GNSs/ZITO films are more than 80% in the visible region and the resistivity of ZITO films with GNSs bridge layer decreased from 502.9 to 13.4 Ω cm. The solution-processed TFT devices with GNSs bridge layer exhibited a desirable characteristic with a subthreshold slope of 0.25 V/dec and current on-off ratio of 1 × 10(7), and the saturation filed effect mobility is improved to 45.9 cm(2)V(-1)s(-1), which exceeds the mobility values of the pristine ZITO TFTs by one order. These results demonstrate the solution-processed ZITO/GNSs/ZITO TFTs maybe make a further step to achieve high-performance TFTs and show the potential for next-generation applications.
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