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• W2980971362 endingPage "105505" @default.
• W2980971362 startingPage "105505" @default.
• W2980971362 abstract "An organic phototransistor memory is presented with a photoactive dielectric layer of 6-[4'-( N , N -diphenylamino)phenyl]-3-ethoxycarbonylcoumarin (DPA-CM) doped into poly(methyl methacrylate) (PMMA) and an electron-trapping layer of poly(perfluoroalkenyl vinyl ether) (CYTOP). The dielectric gate layer functioned as an insulator in the dark and as a charge generator and/or conductive layer under photoirradiation, which resulted in a low program voltage and an operation with long-term stability. A shift in the phototransistor threshold voltage could be reversibly tuned from −5.8 to 6.2 V with a low switching voltage (≤8 V) under UV irradiation. Programmed/erased states were obtained by applying gate pulse voltages of −8/5 V under UV irradiation from an external light source. The phototransistor memory exhibited high stability with a large on/off current ratio of ~10 5 for a retention time up to 2 × 10 6 s with a reliability greater than 10 3 programming/erasing testing cycles. These findings introduce a new approach for organic phototransistor non-volatile memory with high stability. • A low switching voltage, highly stable organic phototransistor memory was fabricated. • The gate dielectric functions as a charge source or conductor under UV light and an insulator under dark. • The memory effect originates from trapping and detrapping electrons at an interface of CYTOP/DPA−CM:PMMA. • The memory device exhibits an on/off ratio up to ~10 5 at retention time of 2 × 10 6 s." @default.
• W2980971362 created "2019-10-25" @default.
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• W2980971362 date "2020-02-01" @default.
• W2980971362 modified "2023-10-10" @default.
• W2980971362 title "Low switching voltage, high-stability organic phototransistor memory based on a photoactive dielectric and an electron trapping layer" @default.
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• W2980971362 doi "https://doi.org/10.1016/j.orgel.2019.105505" @default.
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