Preliminary Systematic Study of the Temperature Effect on the K—Cs—Sb Photocathode Performance Based on the K and Cs Co-Evaporation  

作　　者：Xu-Dong Li Zeng-Gong Jiang Qiang Gu Ming-Hua Zhao Li Guo 李旭东;姜增公;顾强;赵明华;郭力(Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210;Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800)

机构地区：[1]Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210 [2]Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800

出　　处：《Chinese Physics Letters》2020年第1期6-9,共4页中国物理快报（英文版）

基　　金：the National Natural Science Foundation of China under Grant No.11405251;the Shanghai Municipal Science and Technology Major Project.

摘　　要：It is very important to increase the quantum efficiency(QE)and prolong the lifetime of the photocathode in a variety of applications.We have succeeded in preparing a high QE cesium potassium antimonide(K-Cs-Sb)photocathode by K and Cs co-evaporation in the photocathode preparation facility.In order to better understand the effect of the substrate(photocathode)temperature on the photocathode performance,the photocathode preparation,photocathode performance degradation,photocathode performance recovery and photocathode removal are studied in detail.

关 键 词：PREPARING preparation LIFETIME 

分 类 号：O646.541[理学—物理化学]