Photoconductive films

Details Photoconductive films Photoconductive films

1976-04-06

1977-08-09

Padgett, Benjamin R.

Compositions

Electrically conductive or emissive compositions

Light sensitive

313385, 313386, 427 83, 428457, H01L 3100

Patent

active

040409856

ABSTRACT:
A photoconductive film comprises a first region containing Se in which Te and an element capable of forming deep levels in Se are added at concentrations lower than 10 atomic % inclusive on average, respectively, a second region disposed on the first region and containing Se in which Te is added with a continuous distribution of concentration having a peak value greater than 15 atomic % inclusive, a third region disposed on the second region and containing Se in which an element capable of forming deep levels in Se is added with a continuous distribution of concentration having a peak value greater than 15 atomic % inclusive, and a fourth region disposed on the third region and containing Se in which Te and an element capable of forming deep levels in Se are added at concentrations lower than 10 atomic % inclusive on average, respectively.

REFERENCES:
patent: 3655377 (1972-04-01), Sechak
patent: 3769010 (1973-10-01), Hanada et al.
patent: 3890525 (1975-06-01), Hirai et al.
patent: 3904408 (1975-09-01), Hanada et al.

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