PHOTOELECTRIC SURFACE, ELECTRON TUBE COMPRISING SAME, AND METHOD FOR PRODUCING PHOTOELECTRIC SURFACE

Title:

PHOTOELECTRIC SURFACE, ELECTRON TUBE COMPRISING SAME, AND METHOD FOR PRODUCING PHOTOELECTRIC SURFACE

Document Type and Number:

WIPO Patent Application WO/2007/102471

Kind Code:

A1

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.

Inventors:

YAMASHITA SHINICHI (JP)
WATANABE HIROYUKI (JP)
SUZUKI HIDEAKI (JP)
SUZUKI KENGO (JP)

Application Number:

PCT/JP2007/054206

Publication Date:

September 13, 2007

Filing Date:

March 05, 2007

Export Citation:

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Assignee:

HAMAMATSU PHOTONICS KK (JP)
YAMASHITA SHINICHI (JP)
WATANABE HIROYUKI (JP)
SUZUKI HIDEAKI (JP)
SUZUKI KENGO (JP)

International Classes:

H01J1/34; H01J9/12; H01J40/16

Foreign References:

JPS4984362A	1974-08-13
JPH0574406A	1993-03-26
JPS5755048A	1982-04-01
JPS5532397A	1980-03-07
JPH0668840A	1994-03-11
JPH03238747A	1991-10-24
JPH09213277A	1997-08-15
US3254253A	1966-05-31

Other References: