红外技术, 2014, 36 (5): 419, 网络出版: 2014-06-03
非均匀高掺杂对透射式光电阴极光电发射性能影响研究
Research on the Photoemission Performance of the Non-uniform High-doping Transmissive Photocathode
透射式光电阴极 幂函数掺杂 量子效率 微光夜视 transmissive photocathode power-function-doping quantum efficiency night vision
摘要
研究分析了高掺杂浓度下幂函数掺杂阴极发射层内部形成恒定电场情况, 探讨了光电阴极发射层材料内部形成恒定电场对提高透射式光电阴极量子效率中有效电子输运长度、表面电子逸出几率等参量的影响。结合掺杂浓度不同带来的光电子散射问题, 对比讨论了传统的均匀掺杂、指数掺杂、幂函数掺杂情况下发射层材料量子效率情况。
Abstract
It is studied that the photocathode emitter layer with high doping concentration of power-function-doping forms the constant electric field. And the paper discussed the improvement of effective electron transport length、surface electron escape probability and other parameters of transmissive photocathode quantum efficiency resulted from such constant electric field. Considering about the problem of photoelectron scattering caused by the different doping concentrations, the quantum efficiency of three kinds of emission layers which were uniform-doping, exponential-doping and the power function-doping are discussed.
罗美娜, 白廷柱, 任彬, 曲晓霞, 彭岔霞, 郭晖. 非均匀高掺杂对透射式光电阴极光电发射性能影响研究[J]. 红外技术, 2014, 36(5): 419. LUO Mei-na, BAI Ting-zhu, REN Bin, QU Xiao-xia, PENG Cha-xia, GUO Hui. Research on the Photoemission Performance of the Non-uniform High-doping Transmissive Photocathode[J]. Infrared Technology, 2014, 36(5): 419.