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SPECTRAL SENSITIZERS BARRIERS FOR CRYSTALLINE OR AMORPHO ANAT CONFIGURATION

IP.com Disclosure Number: IPCOM000023018D
Original Publication Date: 1976-Jun-30
Included in the Prior Art Database: 2004-Mar-27
Document File: 2 page(s) / 191K

Publishing Venue

Xerox Disclosure Journal

Abstract

A method of changing the xerographic properties of crystal~ line selenium and its alloys by overcoating the selenium or selenium alloys with a thin film of spectral sensitizing dyestuff, is disclosed. More specifically, the sensitizing dyestuff may be used in the AMAT device as a barrier layer

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XEROX DISCLOSURE JOURNAL

SPECTRAL SENSITIZERS-~ Proposed Classification
BARRIERS FOR CRYSTALLINE U~S

                                   0 Cl. 96
OR AMORPHOUS SELENIUM IN THE mt. Cl~ G03c
ANAT CONFIGURATION

Leon A. Teuscher

A method of changing the xerographic properties of crystal~
line selenium and its alloys by overcoating the selenium or
selenium alloys with a thin film of spectral sensitizing
dyestuff, is disclosed. More specifically, the sensitizing
dyestuff may be used in the AMAT device as a barrier layer

for the crystalline of amorphous selenium. For example

1 a
0.2 micron film of selenium may be vacuum deposited on a
conducting support after which the film may be dipped into
a 0.2 percent nigrosin~isopropanol solution and dried and

then coated with a charge transport material. The obtained
device shows different xerographic properties than unsensi~

tized selenium. Another example comprises dispersing 0.2
percent nigrosin-isopropanol into 6 grams of selenium

powder
1 filtering and then washing with isopropanol-water
and dried. The pigment may then be dispersed into a binder

matrix, The film coated with the sensitized selenium
pigment shows a change in xerographic properties when com-
pared to unsensitized selenium film.

Volume 1 Number 6 June 1976 21

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