Photovoltaic device and method of fabricating thereof
AssigneeCambridge Enterprise Limited
InventorsRichard Henry Friend, Neil Clement Greenham, Bruno Ehrler, Brian Walker
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Abstract
An organic/inorganic hybrid photovoltaic device architecture. In some variations, power conversion efficiencies approach 1%. Some variations include an unexpected order of magnitude improvement of power conversion efficiency approaching 5%. Methods of fabricating a photovoltaic device, including depositing over a first electrode an organic semiconductor layer; depositing over the organic semiconductor layer a cross-linking ligand layer; depositing over the cross-linking ligand layer an inorganic nanocrystal layer; and depositing a second electrode over the inorganic nanocrystal layer.
Claims22
A method of fabricating a photovoltaic device, the method comprising:
- depositing an organic semiconductor layer over a first electrode;
- depositing a cross-linking ligand layer over the organic semiconductor layer;
- depositing, over the cross-linking ligand layer, an inorganic nanocrystal layer comprising lead chalcogenide nanocrystals;
- and
- depositing a second electrode over the inorganic nanocrystal layer.
A photovoltaic device comprising:
- a first electrode;
- a second electrode;
- an organic semiconductor layer disposed between the first electrode and the second electrode;
- and
- at least one cross-linked inorganic nanocrystal layer disposed over the organic semiconductor layer, wherein the at least one cross-linked inorganic nanocrystal layer comprises lead chalcogenide nanocrystals.
A solar cell comprising an array of photovoltaic devices, wherein at least one of the photovoltaic devices comprises:
- a first electrode;
- a second electrode;
- an organic semiconductor layer disposed between the first electrode and the second electrode;
- and
- at least one cross-linked inorganic nanocrystal layer disposed over the organic semiconductor layer, wherein the at least one cross-linked inorganic nanocrystal layer comprises lead chalcogenide nanocrystals.
Dependencies are inferred from the claim text.