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US 8,525,303 B2Granted
Photovoltaic device including semiconductor nanocrystals
AssigneeMassachusetts Institute of Technology
InventorsAlexi Arango, Vladimir Bulovic, Vanessa Wood, Moungi G. Bawendi
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Abstract
A photovoltaic device includes a semiconductor nanocrystal and a charge transporting layer that includes an inorganic material. The charge transporting layer can be a hole or electron transporting layer. The inorganic material can be an inorganic semiconductor.
Claims17
A photovoltaic device comprising:
- a first charge transporting layer including a first inorganic material in contact with a first electrode arranged to introduce charge in the first charge transporting layer;
- a second charge transporting layer in contact with a second electrode, wherein the second electrode is arranged to introduce charge in the second charge transporting layer;
- and
- a plurality of semiconductor nanocrystals disposed between the first charge transporting layer and the second charge transporting layer, wherein the plurality of semiconductor nanocrystals is a substantially monodisperse population of semiconductor nanocrystals, and
- wherein the first inorganic material is amorphous or polycrystalline.
2 more elements
A method of generating current, comprising:
- exposing a device to an excitation wavelength of light, wherein the device includes:
- a first charge transporting layer including a first inorganic material in contact with a first electrode arranged to introduce charge in the first charge transporting layer;
- a second charge transporting layer in contact with a second electrode, wherein the second electrode is arranged to introduce charge in the second charge transporting layer;
- and
- a plurality of semiconductor nanocrystals disposed between the first charge transporting layer and the second charge transporting layer, wherein the plurality of semiconductor nanocrystals is a substantially monodisperse population of semiconductor nanocrystals,
- wherein the first inorganic material is amorphous or polycrystalline.
3 more elements
Dependencies are inferred from the claim text.