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- W3167686188 abstract "Abstract Halide perovskites are promising photoactive materials for filter‐free color‐imaging sensors owing to their outstanding optoelectronic properties, tunable bandgaps, and suitability for large‐scale fabrication. However, producing patterned perovskite films of sufficiently high quality for such applications poses a challenge for existing fabrication methods: using solution processes to prepare patterned perovskite films is complicated, while evaporation methods often result in perovskite photodetectors with limited performance. In this paper, the authors report the development of an improved evaporation method in which substrates are treated with a brominated (3‐aminopropyl) triethoxysilane self‐assembled monolayer to improve the properties of the patterned perovskite films. The resulting perovskite photodetectors exhibit significantly enhanced photosensitivity and long‐term stability (exceeding 100 days). Additionally, the polymer substrates facilitate device flexibility. Finally, perovskites comprising three different halide components, each with a different bandgap, are integrated into a device array using the developed evaporation technology, yielding sensors that enable the discrimination of red, green, and blue colors. Thus, the flexible photosensor arrays can generate colorful images closely resembling perceived patterns, demonstrating reliable color imaging. Therefore, this study successfully demonstrates filter‐free color‐imaging by integrating high‐performance patterned and multicomponent perovskite photodetectors, highlighting the potential of such detectors for advanced optoelectronic applications, including hyperspectral imaging." @default.
- W3167686188 created "2021-06-22" @default.
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- W3167686188 date "2021-06-06" @default.
- W3167686188 modified "2023-10-18" @default.
- W3167686188 title "Flexible and Filter‐Free Color‐Imaging Sensors with Multicomponent Perovskites Deposited Using Enhanced Vapor Technology" @default.
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- W3167686188 doi "https://doi.org/10.1002/smll.202007543" @default.
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