Browse Prior Art Database

Preparation of a Photoconductor Structure

IP.com Disclosure Number: IPCOM000085114D
Original Publication Date: 1976-Feb-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Neiman, RR: AUTHOR

Abstract

A charge transport layer (CTL) is coated on a sheet of 5 mil plain MYLAR* brand of polyethylene terephthalate. The CTL is then cured to an appropriate solvent level and the final thickness of the CTL is about 15 Mu. The cured transport layer can then be stripped off the MYLAR to form a cured, self-supporting film.

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Preparation of a Photoconductor Structure

A charge transport layer (CTL) is coated on a sheet of 5 mil plain MYLAR* brand of polyethylene terephthalate. The CTL is then cured to an appropriate solvent level and the final thickness of the CTL is about 15 Mu. The cured transport layer can then be stripped off the MYLAR to form a cured, self- supporting film.

The charge generation layer (CGL) (for example, a squarylium) can then be evaporated onto the transport layer film; then, aluminum can be evaporated onto the CGL to form the layered photoconductor structure. Lamination of this film to an aluminized MYLAR layer then forms a robust photosensitive material for office copier applications.

As an example, a self-supporting transport layer was prepared by coating a 1:1 (by weight) mixture of Merlon M-60 brand of polycarbonate resin and 1- phenyl-3-[p-diethylaminostyryl]-5-[p-diethylamino phenyl]-pyrazoline solution (in tetrahydrofurane) on plain MYLAR. This coating was cured at ~100 degrees C, then stripped from the MYLAR.

A 600 Angstroms thick charge generation layer of methyl squarylium was then deposited on the transport layer by evaporation in a vacuum chamber. This was followed by a deposition of 500 Angstroms of aluminum, also in vacuum. Such a structure can be laminated to aluminized MYLAR to provide a more physically durable material. * Trademark of E. I. du Pont de Nemours & Co.

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