摘要
紫外敏感 ultrafast 光电的效果被观察在倾斜了 10 ? 铼？？
An ultraviolet sensitive ultrafast photovoltaic effect is observed in tilted 10° KTaO3 （KT） single crystals. The rise time of the transient photovoltaic pulse is 497.4 ps and the full width at half maximum is 974.6 ps under irradiation of a 266 nm laser pulse with 25 ps duration. An open-circuit photovoltage sensitivity of 328 mV/mJ and a photocurrent sensitivity of 460 mA/mJ are obtained. The experimental results demonstrate the potential applications of KT single crystals in ultraviolet detection.
基金
Supported by the National Natural Science Foundation of China under Grant No 50672120, and the National Basic Research Program of China under Grant No 2007CB307005.
关键词
光电效应
紫外线
单晶
敏感
上升时间
电压灵敏度
电流灵敏度
光电脉冲
Electronics and devices Condensed matter: electrical, magnetic and optical Optics, quantum optics and lasers
