Photocathode and method of manufacturing the same

Details Photocathode and method of manufacturing the same Photocathode and method of manufacturing the same

1989-09-15

1990-08-21

Yusko, Donald J.

Electric lamp and discharge devices

Photosensitive

Photocathode

313527, 313373, 427 78, H01J 4006, B05D 512

Patent

active

049509527

ABSTRACT:
The present invention provides a photocathode which is formed on a substrate consisting of polycrystalline members, and which mainly consists of a semimetal, manganese or silver, and one or a plurality of alkaline metals, characterized in that the photocathode is formed on an alkaline metal oxide layer formed on the substrate, and a composition ratio of the semimetal, manganese or silver, and the one or a plurality of alkaline metals is stoichiometric or almost stoichiometric. The photocathode of the present invention has high sensitivity and can stably maintain the sensitivity for a long period of time.

REFERENCES:
patent: 3697794 (1972-10-01), Stoudenheimer et al.
patent: 4002735 (1977-01-01), McDonie et al.
patent: 4160185 (1979-07-01), Tomasetti et al.
patent: 4331701 (1982-05-01), McDonie
Patent Abstracts of Japan, vol. 10, No. 27 (E-378) [2084], 4th Feb. 1986; & JP-A-60 185 349 (Toshiba K.K.) 20-09-1985.

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