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- W2090972770 abstract "Solution-processed ultra-thin (∼3 nm) zinc tin oxide (ZTO) thin film transistors (TFTs) with a mobility of 8 cm2/Vs are obtained with post spin-coating annealing at only 350 °C. The effect of light illumination (at wavelengths of 405 nm or 532 nm) on the stability of TFT transfer characteristics under various gate bias stress conditions (zero, positive, and negative) is investigated. It is found that the ΔVth (Vthstress 3400 s − stress 0 s) window is significantly positive when ZTO TFTs are under positive bias stress (PBS, ΔVth = 9.98 V) and positive bias illumination stress (λ = 405 nm and ΔVth = 6.96 V), but ΔVth is slightly negative under only light illumination stress (λ = 405 nm and ΔVth = −2.02 V) or negative bias stress (ΔVth = −2.27 V). However, the ΔVth of ZTO TFT under negative bias illumination stress is substantial, and it will efficiently recover the ΔVth caused by PBS. The result is attributed to the photo-ionization and subsequent transition of electronic states of oxygen vacancies (i.e., Vo, Vo+, and Vo++) in ZTO. A detailed mechanism is discussed to better understand the bias stress stability of solution processed ZTO TFTs." @default.
- W2090972770 created "2016-06-24" @default.
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- W2090972770 date "2014-07-14" @default.
- W2090972770 modified "2023-10-14" @default.
- W2090972770 title "Role of oxygen vacancies on the bias illumination stress stability of solution-processed zinc tin oxide thin film transistors" @default.
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- W2090972770 doi "https://doi.org/10.1063/1.4890579" @default.
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