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US 2009/0211634 A1Published application
Quantum dot solar cell
AssigneeHoneywell International Inc.
InventorsBogdan-Catalin Serban, Mihai N. Mihaila, Viorel -Georgel Dumitru, Stefan- Dan Costea
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Abstract
A solar cell may include a quantum dot and an electron conductor. A bifunctional ligand may be disposed between the quantum dot and the electron conductor. The ligand molecule may include an electron conductor anchor that bonds to the electron conductor and a first quantum dot anchor that bonds to the quantum dot. A hole conductor such as a conductive polymer may include a second quantum dot anchor.
Claims20
A solar cell comprising:
- an electron conductor layer;
- a quantum dot layer comprising a plurality of quantum dots;
- a bifunctional ligand layer coupled to the electron conductor layer and to the quantum dot layer, the bifunctional ligand layer comprising a plurality of bifunctional ligands, at least some of the bifunctional ligands having a structure selected from:
- H2PO3—R—PO3H2, H2PO3—Ar—PO3H2 or H2N—Ar—PO3H2,
- where R is alkyl or hydroxyalkyl and Ar is aromatic;
- and
- a hole conductor layer coupled to the quantum dot layer.
4 more elements
A solar cell comprising:
- an electron conductor;
- a quantum dot;
- a bifunctional ligand including an electron conductor bonding moiety and a first quantum dot anchor;
- and
- a hole conductor comprising a second quantum dot anchor;
- wherein the first quantum dot anchor and the second quantum dot anchor independently comprise a phosphonic acid moiety.
3 more elements
A solar cell comprising:
- an electron conductor;
- a quantum dot;
- a bifunctional ligand including an electron conductor bonding moiety and a quantum dot anchor;
- and
- a hole conductor comprising a pyridine moiety;
- wherein the quantum dot anchor comprises an amine moiety and the electron conductor bonding moiety comprises a phosphonic acid moiety.
3 more elements
Dependencies are inferred from the claim text.