Bi-alkali telluride photocathode

Details Bi-alkali telluride photocathode Bi-alkali telluride photocathode

1978-07-20

1980-04-01

Ansher, Harold

Stock material or miscellaneous articles

Composite

Of metal

313 94, 313373, 428539, 428913, H01J 3906, H01J 114

Patent

active

041962575

ABSTRACT:
A photocathode is formed by depositing a film of tellurium on a conductive base and then sensitizing the tellurium with at least two different alkali metals such as cesium and potassium or sodium and potassium. The photocathode has high sensitivity in the ultraviolet region and is substantially insensitive to solar radiation through the earth's atmosphere. Such a photocathode is useful in "solar-blind" detectors.

REFERENCES:
patent: 2668778 (1954-02-01), Taft
patent: 2770561 (1956-11-01), Sommer
patent: 2868736 (1959-01-01), Weinreich
patent: 3006786 (1961-10-01), Sjoberg
patent: 3020432 (1962-02-01), Nicholson
patent: 3434876 (1969-03-01), Stoudenheimer
patent: 3867662 (1975-02-01), Endriz et al.
patent: 3902924 (1975-09-01), Maciolek et al.
patent: 4098617 (1978-07-01), Lidorenko et al.

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