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Photovoltaic devices fabricated from nanostructured template

  • US 20050098204A1
  • Filed: 02/02/2004
  • Published: 05/12/2005
  • Est. Priority Date: 05/21/2003
  • Status: Active Grant
First Claim
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1. A photovoltaic device, comprising:

  • a nanostructured template made from an n-type first charge transfer-material, the nanostructured template having template elements between about 1 nm and about 500 nm in diameter with a template element density of between about 1012 elements/m2 and about 1016 elements/m2;

    a second charge-transfer material conformally coating one or more walls of the template elements leaving additional space, wherein the first charge-transfer material is n-type and the second charge-transfer is p-type; and

    a third material in the additional space, wherein the third material is a p-type or conducting material that volumetrically interdigitates with the second charge-transfer material, wherein a lowest unoccupied molecular orbital (LUMO) or conduction band of the first charge-transfer material differs from a LUMTO or conduction band of the second charge-transfer material by less than about 1 eV, wherein a light absorbance of at least one charge transfer material is greater than about 103/cm at the peak of the absorption spectrum.

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