Licentia Patent-verwaltungs Gmbh

Hubert Walsdorfer

Manfred Lutz

Karl-Heinz Kassel

Josef Stuke

Hartmut Dulken

Karlheinz Kassel

Wolfgang Mows

An electrophotographic recording material comprises a conductive substrate, a first photoconductive selenium layer containing halogen disposed on the substrate, and a second photoconductive selenium layer containing arsenic disposed on the second photo conductive layer. The first photo conductive layer disposed on the substrate additionally contains arsenic.

Dual layer electrophotographic recording material containing a layer of

In a method for producing an electrophotographic recording material composed of a dual layer of amorphous and crystallized selenium applied to an electrically conductive substrate, tellurium is vapor-deposited in a vacuum onto the surface of the conductive substrate to a layer thickness of about 0.5 to about 5 nanometers to form a tellurium layer, and selenium is vapor-deposited onto the tellurium layer to a layer thickness of about 20 to about 100 microns to form the dual layer of amorphous and crystallized selenium.

Method for producing an electrophotographic recording material having

In a process for producing an electrophotographic recording material composed of a double layer of amorphous and crystallized selenium on an electrically conductive carrier, a layer of tellurium having a thickness of 10 to 500 nm is applied onto the surface of the carrier, and selenium is then vapor-deposited onto the tellurium layer to a thickness of 20 to 100.mu. to form the double layer.

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Warstein, Germany

Hubert Walsdorfer