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- W1980863074 abstract "An organic thin-film transistor was fabricated with pentacene as the active material and poly(4-vinyl phenol) as the gate-dielectric material. Atomic force microscope image shows that the pentacene film grows in the polycrystalline structure of the poly-4-vinylphenol (PVP) dielectric layer with the surface root-mean square (RMS) roughness of 6.0 nm and average grain size of 800 nm. The pentacene thin-film transistor exhibited a saturation field-effect mobility of 1.64 cm2/V s, a threshold voltage of −18 V, a sub-threshold swing of 3.53 V/decade, on/off-current ratio of 7.1 × 104 and interface trap density of 5.39 × 1012 eV−1 cm−2. The higher mobility of pentacene on poly(4-vinyl phenol) layer is attributed to the larger grain size of the pentacene. The photoresponsive properties of the organic thin-film transistor were investigated under various illumination intensities. The photosensitivity was measured as 1.46 at an illumination intensity of 100 mW/cm2 at the off state. This suggests that the pentacene thin-film transistor shows a phototransistor behavior." @default.
- W1980863074 created "2016-06-24" @default.
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- W1980863074 date "2009-12-01" @default.
- W1980863074 modified "2023-10-05" @default.
- W1980863074 title "High-mobility pentacene thin-film phototransistor with poly-4-vinylphenol gate dielectric" @default.
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- W1980863074 doi "https://doi.org/10.1016/j.sna.2009.10.011" @default.
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