【摘 要】
：
Monoclinic Ga2O3 (β-Ga2O3) is a promising material for achieving solar-blind photodetection because of its unique characteristics,including its high breakdown
【机 构】
：
Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Ph
【出 处】
：
中国科学:物理学 力学 天文学（英文版）
论文部分内容阅读
Monoclinic Ga2O3 (β-Ga2O3) is a promising material for achieving solar-blind photodetection because of its unique characteristics,including its high breakdown electric field,radiation hardness,thermal and chemical stabilities,and intrinsic visible/solar-blind properties.Until now,several studies have investigated the development of high-performance β-Ga2O3 solar-blind photodetectors.However,these photodetectors can only detect the light intensity but not the light position.In this work,fourquadrant position-sensitive detectors (4Q-PSDs) were developed and demonstrated based on/β-Ga2O3.4Q-PSDs,comprising four identical metal-semiconductor-metal-structured photodetector components,demonstrate high uniformity,large signal-tonoise ratio,good ultraviolet/visible rejection ratio,and fast response/recovery time.Subsequently,the position of the illumination beam can be determined by analyzing the output signals of the four photodetector components.This work may indicate the promising application potential of the Ga2O3-based photodetectors in the fields of positioning,aligning,and monitoring the solarblind beams.
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