Spatially distributed CdS in thin film photovoltaic devices and their methods of manufacture
US9000549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2012 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Mar 23, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/543
Abstract
Thin film photovoltaic devices are provided. The device includes a transparent substrate; a transparent conductive oxide layer on the transparent substrate; an n-type window layer on the transparent conductive oxide layer, an absorber layer on the n-type window layer, and a back contact layer on the absorber layer. The n-type window layer includes a plurality of nanoparticles spatially distributed within a medium, with the nanoparticles comprising cadmium sulfide. In one embodiment, the medium has an optical bandgap that is greater than about 3.0 eV (e.g., includes a material other than cadmium sulfide). Methods are also provided for such thin film photovoltaic devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.