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Advanced optical materials: preparation technology, photoelectric properties and wide band photoelectric detection of thin layer black phosphorus

wallpapers News 2020-10-04
The mid infrared radiation of

refers to the electromagnetic wave in the b of 2.5-25 μ m in the spectrum wavelength range of electromagnetic radiation. Through the interaction of light matter the photodetector can convert the optical signal in this b into electrical signal regulate it. Traditional mid infrared photodetectors such as HgCdTe InSb play an important role in thermal imaging wireless communication environmental monitoring other fields. However with the development of society the dem for small size low quality low power consumption of mid infrared photodetectors is increasing. The next generation of mid infrared photodetectors with high performance need to be developed. In recent years

have gradually entered the field of photodetectors due to their large specific surface area excellent photoelectric conversion properties. Because of its high absorption b gap it can be used as a thin-layer photoelectric detector.

based on this Professor Chen Xiaolong of Southern University of science technology Professor Zhang Han of Shenzhen University reviewed the preparation technology photoelectric properties of thin layer black phosphorus in recent years summarized prospected the research progress of infrared wide b photodetectors. This paper reviews different types of thin-layer black phosphorus preparation technologies compares the advantages disadvantages of different technologies introduces the main photoelectric properties of thin-layer black phosphorus explains its advantages as the absorption layer of photodetector summarizes the types performance characteristics of mid infrared wide b Photodetector Based on thin-layer black phosphorus looks forward to its future development trend technical challenges. This work is of great significance to help relevant researchers underst the research status challenges opportunities in this new field deepen the understing of black phosphorus based mid infrared photodetectors.


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