SISGR: Defect Studies of CZTSSe & Related Thin Film Photovoltaic Materials
- Univ. of Utah, Salt Lake City, UT (United States)
The research objectives of this project centered around investigations of the basic properties of Cu2ZnSn(S,Se)4 especially the electronic defects in the bulk, at the interface with heterojunction partners used in solar cells, and at the polycrystalline grain boundaries. In the course of the project we addressed many specific sub-areas in 17 peer reviewed publications listed at the end of this report (2 more are also in preparation). The impact of this research is to generate basic but critical materials knowledge about this emerging alloy system that may be capable of photovoltaic efficiency on par with CdTe and CIGS but at lower cost and having the benefit of avoiding constraints on scale-up from rare and expensive elements using earth abundant elements. In the final phase of this project, Prof. Scarpulla worked with Dr. Kirstin Alberi at NREL and rigorously solved a theoretical problem that is general across all semiconductors – the prediction of point defect concentrations in the presence of excess carriers.
- Research Organization:
- Univ. of Utah, Salt Lake City, UT (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- DOE Contract Number:
- SC0001630
- OSTI ID:
- 1349086
- Report Number(s):
- Final report: DOE-UTAH-2017-1
- Country of Publication:
- United States
- Language:
- English
Similar Records
Understanding of Defect Physics in Polycrystalline Photovoltaic Materials
Spectroscopic ellipsometry for analysis of polycrystalline thin-film photovoltaic devices and prediction of external quantum efficiency