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Perovskite-Inspired Lead-Free Ag2BiI5 for Self-Powered NIR-Blind Visible Light Photodetection

Nano-Micro Letters 2020年第2期12卷 199-210页

作者： vincenzo pecunia Yue Yuan Jing Zhao Kai Xia Yan Wang Steffen Duhm Luis Portilla Fengzhu Li Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow University

In recent years,solution-processible semiconductors with perovskite or perovskite-inspired structures have been extensively investigated for optoelectronic *** particular,silver-bismuth-halides have been identified as especially promising because of their bulk properties and lack of heavily toxic *** study investigates the potential of Ag2BiI5 for near-infrared(NIR)-blind visible light photodetection,which is critical to emerging applications(e.g.,wearable optoelectronics and the Internet of Things).Self-powered photodetectors were realized and provided a near-constant≈100 mA W−1 responsivity through the visible,a NIR rejection ratio of>250,a long-wavelength responsivity onset matching standard colorimetric functions,and a linear photoresponse of>5 orders of *** optoelectronic characterization of Ag2BiI5 photodetectors additionally revealed consistency with one-center models and the role of the carrier collection distance in self-powered *** study provides a positive outlook of Ag2BiI5 toward emerging applications on low-cost and low-power NIR-blind visible light photodetector.

关键词： Perovskite-inspired semiconductor Silver bismuth iodide Self-powered photodetector NIR-blind photodetector Visible light photodetector

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Lead–halide perovskites for next-generation selfpowered photodetectors:a comprehensive review

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Photonics Research 2021年第6期9卷 968-991页

作者： CHANDRASEKAR PERUMAL VEERAMALAI SHUAI FENG XIAOMING ZHANG S.V.N.PAMMI vincenzo pecunia CHUANBO LI School of Science Minzu University of ChinaBeijing 100081China Department of Materials Science and Engineering Chungnam National University34134 DaejeonRepublic of Korea Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices Institute of Functional Nano&Soft Materials(FUNSOM)Joint International Research Laboratory of Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123China Optoelectronics Research Center Minzu University of ChinaBeijing 100081China

Metal halide perovskites have aroused tremendous interest in optoelectronics due to their attractive properties,encouraging the development of high-performance devices for emerging application domains such as wearable electronics and the Internet of ***,the development of high-performance perovskite-based photodetectors(PDs)as an ultimate substitute for conventional PDs made of inorganic semiconductors such as silicon,InGaAs,GaN,and germanium-based commercial PDs,attracts great attention by virtue of its solution processing,film deposition technique,and tunable optical ***,perovskite PDs can also deliver high performance without an external power source;so-called self-powered perovskite photodetectors(SPPDs)have found eminent application in next-generation nanodevices operating independently,wirelessly,and *** research reports indicate that perovskite-based SPPDs have excellent photoresponsive behavior and wideband spectral response *** the high-performance perovskite PDs,their commercialization is hindered by long-term material instability under ambient *** review aims to provide a comprehensive compilation of the research results on self-powered,lead–halide perovskite *** addition,a brief introduction is given to flexible ***,we put forward some perspectives on the further development of perovskite-based self-powered *** believe that this review can provide state-of-the-art current research on SPPDs and serve as a guide to improvising a path for enhancing the performance to meet the versatility of practical device applications.

关键词： properties perovskite halide

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