Nanostructure and nanocomposite based compositions and photovoltaic devices
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Abstract
Nanocomposite photovoltaic devices are provided that generally include semiconductor nanocrystals as at least a portion of a photoactive layer. Photovoltaic devices and other layered devices that comprise core-shell nanostructures and/or two populations of nanostructures, where the nanostructures are not necessarily part of a nanocomposite, are also provided, as are devices including a recombination material and/or multiple electrodes. Varied architectures for such devices are also provided, including flexible and rigid architectures, planar and non-planar architectures, and the like, as are systems incorporating such devices, and methods and systems for fabricating such devices. Compositions comprising two populations of nanostructures of different materials or nanostructures and a small molecule are also described, as are doped polymer nanocomposites. Compositions useful for making nanocomposites are also described.
219 Citations
211 Claims
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1-103. -103. (canceled)
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104. A photovoltaic device, comprising:
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a first electrode layer;
a second electrode layer; and
a first photoactive layer disposed between the first and second electrode layers, wherein the photoactive layer is disposed in at least partial electrical contact with the first electrode and with the second electrode, wherein the photoactive layer comprises a first population of nanostructures and (a) a conductive polymer whose charge carrying properties have been altered by controlled partial oxidation of the polymer and/or (b) a small molecule. - View Dependent Claims (105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140)
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141-193. -193. (canceled)
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194. A composition, comprising:
- a first population of nanostructures and a small molecule, each nanostructure of the first population having at least one elongated section oriented predominantly normal to at least a first plane.
- View Dependent Claims (195, 196, 197, 198, 199, 200, 201)
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202. A composition, comprising:
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a population of nanostructures;
a polymer and/or a small molecule;
a first solvent; and
,a second solvent, wherein the first solvent has a vapor pressure that is not equal to a vapor pressure of the second solvent, and wherein at least one of the first and second solvents is free of chloroform and pyridine. - View Dependent Claims (203, 204, 205, 206, 207, 208, 209, 210)
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211-285. -285. (canceled)
Specification