Photoconductive devices containing novel squaraine compositions
US4471041A · kind A · utility
6Cited by
4References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1983 |
| Grant date | Sep 11, 1984 |
| Priority date | — |
| Expiry date | May 9, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G5/0611
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An improved photoresponsive device comprised in the order stated of (1) a supporting substrate, (2) a photoconductive layer comprised of squaraine compositions of the following formula: ##STR1## wherein Ar is selected from the moieties specified resulting in the following -squaraines: PA1 I. bis-9-(8-hydroxyjulolidinyl)squaraine ##STR2## II. bis-9-(8,10-dihydroxyjulolidinyl)squaraine ##STR3## III. bis(4-dimethylamino-2-methylthiophenyl)squaraine ##STR4## and IV. bis(2,6-dihydroxy-4-dimethylaminophenyl)squaraine ##STR5## and (3) a diamine hole transport layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.