Target of image pickup tube

Details Target of image pickup tube Target of image pickup tube

1987-02-19

1989-09-12

Wieder, Kenneth

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313388, H01J 2945

Patent

active

048663328

ABSTRACT:
A target of an image pickup tube, having a transparent substrate, a transparent conductive film, a p-type photoconductive film made mainly from amorphous Se, and an n-type conductive film capable of forming a rectifying contact at the interface with the p-type photoconductive film, using the rectifying contact as a reverse bias, characterized in that the p-type photoconductive film containing at least a region having more than 35%, and to 60% by weight of Te in the film thickness direction, and at least a region containing 0.005 to 5% by weight of at least a material capable of forming shallow levels in the amorphous Se in the film thickness direction, has good after-image characteristics even if operated at a high temperature.

REFERENCES:
patent: 3890525 (1975-06-01), Hirai et al.
patent: 4040985 (1977-08-01), Shidara et al.
patent: 4307319 (1981-12-01), Terao et al.
patent: 4330733 (1982-05-01), Shidara et al.
patent: 4463279 (1984-07-01), Shidara et al.

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