Composition and Method For Upconversion of Light and Devices Incorporating Same
AssigneeThe Board of Trustees of the Leland Stanford Junior University
InventorsJennifer Anne Dionne, Alberto Salleo, Di Meng Wu
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Abstract
An up-converting electrode and a solar cell that combines the up-converting electrode are disclosed. The up-converting electrode comprises a material that up-converts light from longer wavelengths to shorter wavelengths and an electrically conductive material. The electrically conductive material increases the efficiency of the up-converting material such that more light is up-converted. The up-converting electrode can also serve as an electrical contact for the solar cell.
Claims20
An article comprising an up-converting electrode, wherein the up-converting electrode comprises:
- a first material that is electrically conductive;
- and
- a second material that is capable of up-converting light having a wavelength greater than about 730 nanometers to light having a wavelength that is less than 730 nanometers, wherein the first material and the second material are in contact with one another forming a hybrid film.
An article comprising:
- an up-converting electrode, the up-converting electrode including:
- (i) a first material that is electrically conductive;
- and
- (ii) a second material that is capable of up-converting light having a wavelength greater than about 730 nanometers to light having a wavelength that is less than 730 nanometers, wherein the first material and the second material are in contact with one another forming a hybrid film;
- and
- an optically active region, wherein the optically active region absorbs photons having a wavelength less than about 730 nanometers and generates an electrical current therefrom, wherein the optically active region is disposed on the up-converting electrode.
A method comprising:
- a) forming an up-converting electrode, the up-converting electrode including:
- (i) a first material that is electrically conductive;
- and
- (ii) a second material that is capable of up-converting light having a wavelength greater than about 730 nanometers to light having a wavelength that is less than 730 nanometers, wherein the first material and the second material are in contact with one another forming a hybrid film;
- and
- b) forming an optically active layer on the up-converting electrode, wherein the optically active layer comprises a semiconductor.
Dependencies are inferred from the claim text.