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- W3195524584 abstract "Flexible and air-stable phototransistors are highly demanded for wearable near-infrared (NIR) image sensors. However, advanced NIR sensors via low-cost, solution-based processes remained a challenge. Herein, high-performance inorganic–organic hybrid phototransistors are achieved based on solution processed n-type metal oxide/polymer semiconductor heterostructures of In2O3/poly{5,5′-bis[3,5-bis(thienyl)phenyl]-2,2′-bithiophene-3-ethylesterthiophene]} (PTPBT-ET). The In2O3/PTPBT-ET hybrid phototransistor combines the advantages of both fast electron transport in In2O3 and high photoresponse in PTPBT-ET, showing high saturation mobility of 7.1 cm2 V−1 s−1 and large current on/off ratio of >107. As a result, the phototransistor exhibits high performance towards NIR light sensing with a responsivity of 200 A W−1, a specific detectivity of 1.2 × 1013 Jones, and fast photoresponse with rise/fall time of 5/120 ms. Remarkably, the hybrid phototransistor, without any passivation, demonstrates excellent electrical stability without performance degradation even after 160 days in air. A 10 × 10 phototransistor array is also enabled by virtue of the high device uniformity. Lastly, flexible In2O3/PTPBT-ET phototransistor on polyimide substrate is attained, exhibiting outstanding mechanical flexibility up to 1000 bending/releasing cycles at a bending radius of 5 mm. These achievements pave the way for constructing air-stable hybrid phototransistors for flexible NIR image sensor applications." @default.
- W3195524584 created "2021-08-30" @default.
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- W3195524584 date "2021-08-16" @default.
- W3195524584 modified "2023-10-17" @default.
- W3195524584 title "Flexible and Air‐Stable Near‐Infrared Sensors Based on Solution‐Processed Inorganic–Organic Hybrid Phototransistors" @default.
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- W3195524584 doi "https://doi.org/10.1002/adfm.202105887" @default.
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