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US 6,555,840 B1Granted
Charge-transport structures
AssigneeSharp Kabushiki Kaisha
InventorsAndrew James Hudson, Sally Anderson, Michael Stuart Weaver, Craig Tombling
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AssigneeSharp Kabushiki Kaisha
InventorsAndrew James Hudson, Sally Anderson, Michael Stuart Weaver, Craig Tombling
Estimating the term…
A charge-transport structure, e g an opto-electronic structure such an electroluminescent device is manufactured by forming a uniform first charge-transport (eg electron-transport) polymer layer on a substrate. Low molar mass dyes in a solvent are ink-jet printed onto the exposed surface of the first layer to form a multicolor pattern, and the dyes are allowed to diffuse into the layer to form charge-recombination/emitter regions within the layer. Excess dyes are washed away from the surface and then a uniform second charge-transport (eg hole-transport) polymer layer is formed on the resultant smooth surface of the first layer over the tops of the regions. Finally, electrodes are deposited on the top of the second layer in registration with the regions. Photovoltaic structures and organic transistors are also disclosed.
An organic opto-electronic structure comprising an organic charge-transport layer arrangement having:
An organic opto-electronic structure comprising an organic charge-transport layer arrangement having (a) an electron-transport region at one surface, (b) a hole-transport region at an opposite surface, and (c) at least one active region, wherein the or each active region is defined by a diffused region of the organic charge-transport layer arrangement into which at least one dopant has diffused, said diffused region extending only partly through the thickness of one of the said electron-transport region and hole-transport region, so as to form said layer arrangement,
An organic opto-electronic structure comprising an organic charge-transport layer arrangement having (a) an electron-transport region at one surface, (b) a hole-transport region at an opposite surface, and (c) at least one active region, wherein the or each active region is defined by a diffused region of the organic charge-transport layer arrangement into which at least one dopant has diffused, said diffused region extending only partly through the thickness of one of the said electron-transport region and hole-transport region, so as to form said layer arrangement,
An organic opto-electronic structure comprising an organic charge-transport layer arrangement having (a) an electron-transport region at one surface, (b) a hole-transport region at an opposite surface, and (c) at least one active region, wherein the or each active region is defined by a diffused region of the organic charge-transport layer arrangement into which at least one dopant has diffused, said diffused region extending only partly through the thickness of one of the said electron-transport region and hole-transport region, so as to form said layer arrangement,
Dependencies are inferred from the claim text.