检索国际和国家专利汇编

1. (WO2007102471) PHOTOELECTRIC SURFACE, ELECTRON TUBE COMPRISING SAME, AND METHOD FOR PRODUCING PHOTOELECTRIC SURFACE

Pub. No.:    WO/2007/102471    International Application No.:    PCT/JP2007/054206
Publication Date: Fri Sep 14 01:59:59 CEST 2007 International Filing Date: Tue Mar 06 00:59:59 CET 2007
IPC: H01J 1/34
H01J 9/12
H01J 40/16
Applicants: HAMAMATSU PHOTONICS K.K.
浜松ホトニクス株式会社
YAMASHITA, Shinichi
山下 真一
WATANABE, Hiroyuki
渡辺 宏之
SUZUKI, Hideaki
鈴木 秀明
SUZUKI, Kengo
鈴木 健吾
Inventors: YAMASHITA, Shinichi
山下 真一
WATANABE, Hiroyuki
渡辺 宏之
SUZUKI, Hideaki
鈴木 秀明
SUZUKI, Kengo
鈴木 健吾
Title: PHOTOELECTRIC SURFACE, ELECTRON TUBE COMPRISING SAME, AND METHOD FOR PRODUCING PHOTOELECTRIC SURFACE
Abstract:
Disclosed is a photoelectric surface wherein the quantum efficiency is improved. Specifically disclosed is a photoelectric surface (10) comprising a light transmissive substrate (12) composed of a quartz glass or a borosilicate glass, an intermediate layer (14) composed of hafnium oxide (HfO2), a foundation layer (16) composed of an oxide of manganese, magnesium or titanium, and a photoelectron-emitting layer (18) composed of a compound of an alkali metal and antimony. The intermediate layer composed of hafnium oxide prevents the alkali metal contained in the photoelectron-emitting layer from moving into the light transmissive substrate, thereby contributing to improvement of the quantum efficiency.