Chin. Phys. Lett.  2020, Vol. 37 Issue (1): 012901    DOI: 10.1088/0256-307X/37/1/012901
NUCLEAR PHYSICS |
Preliminary Systematic Study of the Temperature Effect on the K–Cs–Sb Photocathode Performance Based on the K and Cs Co-Evaporation
Xu-Dong Li1**, Zeng-Gong Jiang1, Qiang Gu1, Ming-Hua Zhao2, Li Guo2
1Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210
2Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800
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Xu-Dong Li, Zeng-Gong Jiang, Qiang Gu et al  2020 Chin. Phys. Lett. 37 012901
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Abstract 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.
Received: 30 September 2019      Published: 23 December 2019
PACS:  29.25.Bx (Electron sources)  
  81.05.Hd (Other semiconductors)  
  07.30.Kf (Vacuum chambers, auxiliary apparatus, and materials)  
Fund: Supported by the National Natural Science Foundation of China under Grant No. 11405251, and the Shanghai Municipal Science and Technology Major Project.
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https://cpl.iphy.ac.cn/10.1088/0256-307X/37/1/012901       OR      https://cpl.iphy.ac.cn/Y2020/V37/I1/012901
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Xu-Dong Li
Zeng-Gong Jiang
Qiang Gu
Ming-Hua Zhao
Li Guo
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