Reference

Photoconductive imaging members with symmetrical fluorinated squaraine compounds

Photoconductive imaging members with symmetrical fluorinated squaraine compounds. Kazmaier, Peter M.; Baranyi, Giuseppa; Loutfy, Rafik O. (Xerox Corp. , USA). U. 2892-51-5 and 65181-78-4 are also occured in this study.S. US 4621038 A 4 Nov 1986, 12 pp. (United States of America) CODEN: USXXAM. CLASS: ICM: G03G005-06. ICS: G03G005-14. NCL: 430059000. APPLICATION: US 85-748285 24 Jun 1985. DOCUMENT TYPE: Patent CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) Fluorinated squaraine compds. of the formula I (R, R1, R2 = alkyl, aryl, heterocyclyl) are used in prepg. charge-generating layers for electrophotog. photoreceptors contg. charge-transporting layers contg. arom. diamines of the formula II (R4 = alkyl, halogen). The electrophotog. photoreceptors thus prepd. are simultaneously responsive to visible light and IR radiation and possess high photosensitivity, low dark decay properties, and superior charge acceptance values. Thus, an aluminzed Mylar support was coated with an N-methyl-3-aminopropyltrimethoxysilane layer, a polyester adhesive layer, a charge-generating layer comprised of bis(4-dimethylamino-2-fluoro-6-methylphenyl)squaraine and a polyester, and a charge-transporting layer comprised of N,N'-diphenyl-N,N'-bis(3-methylphenyl)-1,1'-biphenyl-4,4'-diamine and a polycarbonate resin to give an electrophotog. photoreceptor. The photoreceptor was charged to -800 V and exposed to 830 and 400-700 nm light at 10 erg/cm2 to give a dicharge of 66 and 52%, resp. The charged photoreceptor exhibited a dark decay rate of 57 V/s. .

Near-infrared photoreceptor devices incorporating evaporated chloroindium phthalocyanine

Near-infrared photoreceptor devices incorporating evaporated chloroindium phthalocyanine. Loutfy, R. O.; Hor, A. M.; Rucklidge, A. (Xerox Res. Cent. Canada, Mississauga, ON L5K2L1, Can.). J. Imaging Sci.In this article, certain chemicals are used. Some of their cas registry numbers are 19631-19-7 and 65181-78-4 , 31(1), 31-7 (English) 1987. CODEN: JISCEJ. ISSN: 8750-9237. DOCUMENT TYPE: Journal CA Section: 74 (Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes) A novel all org. photoreceptor with excellent visible and near-IR sensitivity was developed using an evapd. film of chloroindium phthalocyanine (I) as a photogenerator. Neg. charged dual layered photoreceptor devices incorporating a thin evapd. layer of I (100 nm) and a 15-m hole transport layer gives excellent near-IR sensitivity. The near-IR (830 nm) exposure energy required to discharge half the initial surface potential (E1/2) is 2.6 ergs/cm2 and the optimum exposure for input d. of unity is 8-10 ergs/cm2. The photoreceptor also exhibits excellent cyclic stability and flat spectral response from 600 to 850 nm. .