Abstract
The main obstacle to realizing the use of polycrystalline wide bandgap alloys of CdTe with Mg and Zn in PV is the CdCl processing step. This step, essential to CdTe device performance, removes Zn and Mg from the alloy films while producing less of the benefits seen from the process with CdTe. In this study, the use of AlO3CdS, and MgZnO films at the free surface of the alloys to prevent loss of Mg or Zn is investigated. It is found that AlO3 is the most effective at reducing loss of Mg and Zn, followed by CdS and then MgZnO. A new method of evaluating the transition to CdTe from the as deposited alloy is proposed to account for differences in transition behaviors.
Original language | English (US) |
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Title of host publication | 2018 IEEE 7th World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - A Joint Conference of 45th IEEE PVSC, 28th PVSEC and 34th EU PVSEC |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 283-288 |
Number of pages | 6 |
ISBN (Electronic) | 9781538685297 |
DOIs | |
State | Published - Nov 26 2018 |
Event | 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 - Waikoloa Village, United States Duration: Jun 10 2018 → Jun 15 2018 |
Other
Other | 7th IEEE World Conference on Photovoltaic Energy Conversion, WCPEC 2018 |
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Country | United States |
City | Waikoloa Village |
Period | 6/10/18 → 6/15/18 |
Keywords
- II-VI alloys
- passivation
- tandem photovoltaics
- thin films
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Renewable Energy, Sustainability and the Environment
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials