Photovoltaic healing of non-uniformities in semiconductor devices
A method of making a photovoltaic device using light energy and a solution to normalize electric potential variations in the device. A semiconductor layer having nonuniformities comprising areas of aberrant electric potential deviating from the electric potential of the top surface of the semiconductor is deposited onto a substrate layer. A solution containing an electrolyte, at least one bonding material, and positive and negative ions is applied over the top surface of the semiconductor. Light energy is applied to generate photovoltage in the semiconductor, causing a redistribution of the ions and the bonding material to the areas of aberrant electric potential. The bonding material selectively bonds to the nonuniformities in a manner such that the electric potential of the nonuniformities is normalized relative to the electric potential of the top surface of the semiconductor layer. A conductive electrode layer is then deposited over the top surface of the semiconductor layer.
- Research Organization:
- University Of Toledo, Toledo, OH (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- NERL-NDJ-1-30630-02
- Assignee:
- University Of Toledo
- Patent Number(s):
- 7,098,058
- Application Number:
- 11/035,170
- OSTI ID:
- 1175896
- Country of Publication:
- United States
- Language:
- English
Advances in performance and high-throughput manufacturing of thin-film CdS/CdTe modules
|
conference | January 2002 |
Nonuniform power generation in polycrystalline thin film photovoltaics
|
conference | January 2000 |
Similar Records
Final Report: Vapor Transport Deposition for Thin Film III-V Photovoltaics
Self-Healing Thermal Annealing: Surface Morphological Restructuring Control of GaN Nanorods