摘要:
A photovoltaic cell having an improved barrier electrode comprising indium or tin. The cell utilizes metal-free phthalocyanine dispersed in an electrically insulated binder as the photoactive layer in contact with an ohmic electrode.
摘要:
A layered photoresponsive imaging member comprised of a supporting substrate; a photogenerator layer comprised of a mixture of first and second pigments; and an aryl amine hole transport layer, said mixture comprised of perylenes and phthalocyanines; polycyclic quinones and phthalocyanines; and perinones and phthalocyanines.
摘要:
A surface-grafted material having an inorganic material, a linking group, and a charge transport moiety capable of transporting holes or electrons, and the charge transport moiety is grafted to a surface of the inorganic material via the linking group.
摘要:
This invention relates to improved photoresponsive devices including, for example, those comprised of (1) a supporting substrate, and (2) a photoconductive layer comprised of perylene dye compositions of the following formula: ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 are independently selected from the group consisting of alkyl groups and aryl groups.
摘要:
A photovoltaic cell wherein the photoactive layer comprises a thin layer of metal-free phthalocyanine dispersed in a binder. The electrical output is greatly in excess of that obtained from prior art organic semiconductor photovoltaic cells of the same surface area.
摘要:
Disclosed is a printing plate precursor which comprises a base layer, a layer of photohardenable material, and a layer of softenable material containing photosensitive migration marking material. Alternatively, the precursor can comprise a base layer and a layer of softenable photohardenable material containing photosensitive migration marking material. Also disclosed are processes for preparing printing plates from the disclosed precursors.
摘要:
Disclosed is an improved layered photoresponsive imaging member comprised of a supporting substrate; a vacuum evaporated photogenerator layer comprised of a perylene pigment selected from the group consisting of a mixture of bisbenzimidazo(2,1-a-1',2'-b)anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-6,11-dione, and bisbenzimidazo(2,1-a:2',1'-a)anthra(2,1,9-def:6,5,10-d'e'f')diisoquinoline-10,21-dione, and N,N'-diphenyl-3,4,9,10-perylenebis(dicarboximide); and an aryl amine hole transport layer comprised of molecules of the following formula: ##STR1## dispersed in a resinous binder and wherein X is selected from the group consisting of halogen and alkyl.
摘要:
Disclosed is a process for preparing copolymers which comprises, in the order stated: (1) adding monomers containing unsaturated carbon-to-carbon bonds, a first polymerization initiator, a second polymerization initiator, and a solvent to a reaction vessel; (2) purging the resulting solution with an inert gas; (3) sealing the reaction vessel and pressurizing it by addition of an inert gas to a pressure of from about 20 to about 600 kilopascals over ambient atmospheric pressure; (4) maintaining the temperature within the pressurized reaction vessel at a temperature of from about 50 to about 100.degree. C. for a period of from about 60 to about 300 minutes; (5) thereafter maintaining the temperature within the pressurized reaction vessel at a temperature of from about 80 to about 115.degree. C. for a period of from about 30 to about 300 minutes, wherein the temperature in step (5) is higher than the temperature in step (4); and (6) subsequently maintaining the temperature within the pressurized reaction vessel at a temperature of from about 115 to about 160.degree. C. for a period of from about 30 to about 180 minutes, wherein the temperature in step (6) is higher than the temperature in step (5). Polymers prepared according to the process of the present invention can be particularly useful in migration imaging members.
摘要:
Disclosed is an improved layered photoresponsive imaging member comprised of a vacuum evaporated photogenerator layer comprised of fractionally sublimed quinacridone pigments including 2,9-dichloroquinacridone, and an aryl amine hole transport layer comprised of molecules of the following formula ##STR1## dispersed in a resinous binder, and wherein X is selected from the group consisting of halogen and alkyl.
摘要:
Disclosed is an image bar for use in an imaging apparatus, comprising a linear light valve array with a plurality of discrete, independently addressable pixel portions activatable between light transmitting, partially transmitting, and non-transmitting wavelengths by selective application of an electrical field. The pixel portions comprise, in the order stated, a first transparent substrate; a transparent electrode in contact with the first transparent substrate; a thin film comprising an electrochromic material in contact with the transparent electrode; a transparent electrolytic material in contact with the thin film; a counterelectrode in contact with the transparent electrolytic material; and a second substrate.