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Illumination interface stability of aging-diffusion-modulated high performance InZnO/DyO_(x) transistors and exploration in digital circuits

引用

Journal of Materials Science & Technology 2021年第28期87卷 143-154页

作者： Bing Yang Gang He Qian Gao Wenhao Wang Yongchun Zhang Yufeng Xia Xiaofen Xu Leini Wang Miao Zhang School of Physics and Materials Science Radiation Detection Materials&Devices LabAnhui UniversityHefei230601China Institute of Physical Science and Information Technology Anhui UniversityHefei230601China School of Mechanical Engineering Anhui Vocational and Technical CollegeHefei230011China

In current study,the rare-reported solution-driven DyO_(x)films have been prepared to act as the dielectric layer of high performance InZnO/DyO_(x)thin film transistors(TFTs).Annealing temperature dependent thermal decomposition,morphology,crystallization behavior,and chemical compositions of DyO_(x) and InZnO films have been investigated *** have demonstrated that air-annealed InZnO/DyO_(x)TFTs possess the improved electrical performance,including ultrahigh on/off current ratio of 1×10^(9),larger saturation mobility of 12.6 cm^(2) V-1 s^(-1) and negligible hysteresis after 10 d aging diffusion in the relative humidity(RH)of 40%air ambient,which has been explored by the variable range-hopping(VRH)percolation model and energy band *** distinct illumination bias stability can be attributed to the generated various interface defects and concluded that the white light illuminated TFT behaves the higher stability with the smaller threshold voltage shift of 0.25 *** confirm its feasible application in digital circuit,a resistor-loaded inverter based on InZnO/DyO_(x)TFTs has been constructed.A high gain of 10.1 and good dynamic response behavior have been detected at a low operating voltage of 2 *** a result,it can be inferred that diffusion-induced enhanced carrier transporting mechanism is an economical and effective method to optimize the electrical performance of solution-derived InZnO/DyO_(x)TFTs,indicating its potential application prospects in flexible transparent electronics with low power consumption.

关键词： Dysprosium oxide(DyO_(x)) Thin film transistors(TFTs) aging-diffusion Inverter Illumination bias stability

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