Patent · US Expired

Photoconductive cadmium sulfide and process for producing same

US4090983A · kind A · utility

3Cited by
5References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 28, 1976
Grant dateMay 23, 1978
Priority date
Expiry dateOct 28, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02E10/543
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Photoconductive cadmium sulfide of high photosensitivity suitable for use in electrophotography. Such photoconductive cadmium sulfide is produced by subjecting cadmium sulfide powder to a heat treatment conducted at a temperature ranging from 200.degree. to 600.degree. C in an oxygen-containing inert gas atmosphere, incorporating the treated cadmium sulfide powder with a flux, an activator and sulfur in an amount of 0.002-0.05% by weight based on the cadmium sulfide powder and then baking the mixture in an inert gas atmosphere.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.