A SOLUTION FOR MAKING PHOTOCONDUCTIVE LAYERS AND AN ELECTROPHOTOGRAPHICAL MANUFACTURING OF THESE LAYERS IN CRTS

摘要

Disclosed is a photoconductive solution which has excellent charge characteristics with easy control of charge amount and is completely volatilized after baking. The solution contains 2 to 5 % by weight of tetraphenylethylene as ultraviolet-sensitive material. 0.1 to 1 wt. % diphenylpicrylhydrazine or 0.1 wt. % or less of tetracyanoquino-dimethane (TCNQ) as ultraviolet-sensitive donor material is desirably added to the tetraphenylethylene of 2 to 5 wt. % for better accomplishment of the purpose, and the solution contains at least one of trinitrofluorenone, ethylanthraquinone and their mixture of 0.1 to 1 wt. % as an acceptor. The solution is formed by mixing the above ingredients together with 10 to 20 wt. % of polystyrene-oxazoline copolymer (PS-OX) as polymer binder, and 20 to 85 wt. % of toluene as solvent.