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  • 专利标题:   Photocathode assembly for improving quantum efficiency of bialkali photocathodes, includes a reflective substrate, an enhancement layer on the reflective substrate, and a photosensitive film on the enhancement layer.
  • 专利号:   US11062890-B1
  • 发明人:   LIU F, MOODY N A, YAMAGUCHI H
  • 专利权人:   TRIAD NAT SECURITY LLC
  • 国际专利分类:   H01J040/06, H01J009/12, H01L033/06, H01L033/56
  • 专利详细信息:   US11062890-B1 13 Jul 2021 H01J-040/06 202175 English
  • 申请详细信息:   US11062890-B1 US840187 03 Apr 2020
  • 优先权号:   US830221P, US840187

▎ 摘　　要

NOVELTY - Photocathode assembly includes a reflective substrate, an enhancement layer on the reflective substrate, and a photosensitive film on the enhancement layer. The enhancement layer has a thickness of about 10 nanometer or less and the reflective substrate has a reflectivity of 50% or greater, and the enhancement layer is between the reflective substrate and the photosensitive film. USE - Photocathode assembly for improving quantum efficiency of bialkali photocathodes. ADVANTAGE - The photocathode assembly has improved quantum efficiency. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) A method for manufacturing a photocathode assembly, which involves depositing an enhancement layer on a reflective substrate to form an enhancement layer-reflective substrate laminate, the enhancement layer has a thickness of about 10 nanometer or less; and depositing a photosensitive film on the enhancement layer-reflective substrate laminate to form a photosensitive film-enhancement layer-reflective substrate laminate, where the reflective substrate has a reflectivity of 50 % or greater, and the enhancement layer is between the reflective substrate and the photosensitive film; and (2) A method for improving quantum efficiency of bialkali photocathodes, which involves depositing an enhancement layer on a reflective substrate to form an enhancement layer-reflective substrate laminate, the enhancement layer has a thickness of about 10 nanometer or less; and depositing a photosensitive film on the enhancement layer-reflective substrate laminate to form a photosensitive film-enhancement layer-reflective substrate laminate, where the reflective substrate has a reflectivity of 50 % or greater, and the enhancement layer is between the reflective substrate and the photosensitive film. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic cross sectional view of a photocathode assembly. Photocathode assembly. (100.) Reflective substrate. (101.) Photosensitive film. (103.) Enhancement layer. (105.)