文摘报道了InAs/GaSb二类超晶格红外探测器的瞬态光伏响应特性.通过对p-b-i-n二类超晶格探测器对皮秒脉冲激发的瞬态响应特性的分析及拟合,获得了器件的表观少数载流子的寿命.并对不同尺寸台面结构单元器件进行测试分析,发现少数载流子寿命随着台面面积的增大而增大,归结为由于侧壁表面效应带来的影响.所测器件的少数载流子为空穴,其表观寿命约为2~12 ns.
基金Supported by the National key research and development program during the“14th Five-Year Plan”(2021YFA1200700)Natural Science Foundation of China(62025405 and 61835012)+1 种基金Strategic Priority Research Program of the Chinese Academy of Sciences(XDB44000000)Science and Technology Commission of Shanghai Municipality(2151103500).