Solar cell comprising a plasmonic back reflector and method therefor
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsI-Kang Ding, Jia Zhu, Yi Cui, Michael David McGehee
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Abstract
A method for forming a solar cell having a plasmonic back reflector is disclosed. The method includes the formation of a nanoimprinted surface on which a metal electrode is conformally disposed. The surface structure of the nanoimprinted surface gives rise to a two-dimensional pattern of nanometer-scale features in the metal electrode enabling these features to collectively form the plasmonic back reflector.
Claims22
A solid-state dye-sensitized solar cell comprising:
- a nanoimprinted surface, wherein the nanoimprinted surface includes a first arrangement of surface features;
- and
- an electrode disposed on the nanoimprinted surface, wherein the electrode comprises a second arrangement of surface features that are based on the first arrangement of surface features, and wherein the second arrangement of surface features collectively define a plasmonic back reflector.
A method for forming a solid-state dye-sensitized solar cell comprising:
- forming a nanoimprinted surface, wherein the nanoimprinted surface includes a first arrangement of surface features;
- and
- forming an electrode disposed on the nanoimprinted surface such that the electrode comprises a second arrangement of surface features that are based on the first arrangement of surface features, wherein the second arrangement of surface features collectively define a plasmonic back reflector.
A method for forming a solid-state dye-sensitized solar cell comprising:
- nanoimprinting a first layer of the solar cell to form a nanoimprinted surface, wherein the first layer comprises a plurality of pores, and wherein the first layer comprises titanium dioxide;
- forming a second layer disposed on the nanoimprinted surface, the second layer comprising a hole-transport material;
- and
- forming an electrode disposed on the second layer;
- wherein each of the electrode and the second layer is substantially conformal with the nanoimprinted surface such that the electrode comprises a plurality of features that collectively define a plasmonic surface.
Dependencies are inferred from the claim text.