Browse Prior Art Database

PHOTO-VOLTAIC SENSING DEVICE

IP.com Disclosure Number: IPCOM000025201D
Original Publication Date: 1984-Feb-29
Included in the Prior Art Database: 2004-Apr-04
Document File: 2 page(s) / 88K

Publishing Venue

Xerox Disclosure Journal

Abstract

Disclosed is a photovoltaic sensing device comprised of a supporting substrate and an organic photoconductive material composition situated between two electrodes. In one embodiment the device is comprised of the following layers (1) a transparent supporting substrate, (2) a first electrode, (3) an organic photoconductive com-position, and (4) a second electrode.

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XEROX DISCLOSURE JOURNAL

PHOTO-VOLTAIC SENSING DEVICE
Proposed R. Loutfy Classification

US. C1. 136/243
R. Ho Int. C1. HOll 31/04

Disclosed is a photovoltaic sensing device comprised of a supporting substrate and an organic photoconductive material composition situated between two electrodes. In one embodiment the device is comprised of the following layers (1) a transparent supporting substrate, (2) a first electrode, (3) an organic photoconductive com- position, and (4) a second electrode.

Examples of supporting substrates, which are generally of a thickness of from about 1 mil to about 3 millimeters include conductive polymeric compositions, glass, aluminized Mylar and the like. The first electrode which is of a thickness of from about 75 Angstroms to about 1,000 Angstroms, is comprised of cadmium sulfide, indium, aluminum, zinc oxide, and other similar materials; while the second electrode of a thickness of from about 175 Angstroms to about 250 Angstroms is comprised of gold, copper, .platinum, silver, indium tin oxide, and the like.

Various organic photoconductive materials can be selected such as metal-free phthalocyanaines, metal phthalocyanaines, squarines, tetracarboxylic perylene di- imines, merocyanines, pyrylium salts, carbocyanines, and similar materials. Pre- ferred are phthalocyanaines such as copper phthalocyanaine, x-metal free phthalo- cyanaine, vanadyl phthalocyanaine, and chloroaluminum phthalocyanaine. This layer, which is of a thickness of from about 700 Angstroms to about 900 Angstroms, can contain 100 percent of the organic photoconductive material, or may be comprised of from about 50 percent by weight to about 70 percent by weight of the organic photoconductive material dispersed in from ab...