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US 11,114,623 B2Granted
Organic salts for high voltage organic and transparent solar cells
AssigneeBoard of Trustees of Michigan State University
InventorsRichard R. Lunt, III, John Suddard-Bangsund, Christopher Traverse, Margaret Young
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Abstract
Photo-active devices including a substrate, a first electrode, an active layer including an organic salt or salt mixture that selectively or predominantly harvests light from the near infrared or infrared regions of the solar spectrum, and a second electrode. The devices are either visibly transparent or visibly opaque and can be utilized in single- or multi-junction devices.
Claims20
A photo-active device comprising:
- a substrate;
- a first electrode disposed on at least one surface of the substrate;
- an active layer comprising an organic salt comprising a counterion selected from the group consisting of halides, aryl borates, carboranes, phosphates, fluoroantimonates, fluoroborates, derivatives thereof, and combinations thereof, wherein the phosphates do not include fluorophosphates;
- and
- a second electrode,
- wherein the active layer is positioned between the first electrode and the second electrode.
3 more elements
A photo-active device comprising:
- an active layer comprising an organic salt having either a polymethine ion or a cyanine ion, and a counterion selected from the group consisting of halides, aryl borates, carboranes, fluoroantimonates, phosphates, fluoroborates, derivatives thereof, and combinations thereof, wherein the phosphates do not include fluorophosphates.
A photo-active device comprising:
- a substrate;
- a first electrode disposed on at least one surface of the substrate;
- an active layer comprising an organic salt comprising a counterion selected from the group consisting of halides, aryl borates, carboranes, phosphates, fluoroantimonates, fluoroborates, derivatives thereof, and combinations thereof, wherein the phosphates do not include fluorophosphates;
- and
- a second electrode,
- wherein the active layer is positioned between the first electrode and the second electrode, and
- wherein the photo-active device has an open circuit voltage that is within 30% of the excitonic limit.
4 more elements
Dependencies are inferred from the claim text.