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- W4376958963 abstract "Abstract Recently, hybrid organic−inorganic perovskites have emerged as promising photo‐sensing materials for next‐generation solution‐processed phototransistors, achieving high responsivity, detectivity, and fast response. Here, a phototransistor that can detect visible light using a low‐cost, solution processed methylammonium lead iodide/zinc oxide (CH 3 NH 3 PbI 3 /ZnO) heterostructure is reported. While typical ZnO thin‐film transistors (TFTs) do not show any photocurrent under visible light illumination, CH 3 NH 3 PbI 3 (MAPbI 3 ) coated ZnO TFTs exhibit substantial photocurrent. Additionally, the optical, morphological, and structural characteristics of the light‐absorbing layers are further controlled by altering the precursor ratio of methylammonium iodide and lead (II) iodide (MAI:PbI 2 ), which in turn affects the photosensitivity. Stoichiometric composition (MAI:PbI 2 = 1:1) of MAPbI 3 demonstrates optimal characteristics with a responsivity of 234 A/W and a high detectivity of 3.74 × 10 13 Jones under white light illumination. The high photo‐responsivity and detectivity result from the combination of the suitable optoelectronic properties of the stoichiometric MAPbI 3 film and its smooth interface with the ZnO channel." @default.
- W4376958963 created "2023-05-18" @default.
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- W4376958963 date "2023-05-17" @default.
- W4376958963 modified "2023-10-17" @default.
- W4376958963 title "Composition‐Dependent High‐Performance Phototransistors Based on Solution Processed CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>/ZnO Heterostructures" @default.
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- W4376958963 doi "https://doi.org/10.1002/adom.202300367" @default.
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