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Abstract：
A technology for fabricating negative electron affinity (NEA) multi-alkali photocathodes is described. A reflection-mode NEA multi-alkali photocathode of (Na2KSb-Cs)-O-Cs structure with a maximum photosensitivity of 700 μA/lm is fabricated. The quantum yield of the NEA (Na2KSb-Cs)-O-Cs photocathode is presented. The roles of cesium and oxygen, the surface-layer model, and the energy diagram of the photocathode thus fabricated are also discussed. © 1993.
Reprint 's Address：
Source ：
Applied Surface Science
ISSN： 0169-4332
Year： 1993
Issue： PART 1
Volume： 70-71
Page： 355-358
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JCR@2023
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