- Photovoltaic devices
- Promises good efficiency and reliable stability compared to earlier nanocrystal solar cells
- Nanocrystal films exhibit extremely low carrier concentrations and high trap densities as well as confined excitations that can migrate between crystals
A solar cell having a first electrode layer, a high resistivity transparent film disposed on the first electrode, a second electrode layer, and an inorganic photoactive layer disposed between the first and second electrode layers, wherein the inorganic photoactive layer is disposed in at least partial electrical contact with the high resistivity transparent film, and in at least partial electrical contact with the second electrode. The photoactive layer has a first inorganic material and a second inorganic material different from the first inorganic material, wherein the first and second inorganic materials exhibit a type II band offset energy profile, and wherein the photoactive layer has a first population of nanostructures of a first inorganic material and a second population of nanostructures of a second inorganic material.
For complete details, see Issued US Patent 8,440,906 available at www.uspto.gov.
STATUS: Issued US Patent 8,440,906 available at www.uspto.gov.