Proton irradiation effects on silicon heterojunction solar cells with MoOx selective contacts
In this study, we investigate the effects of proton irradiation on silicon-based heterojunction and molybdenum oxide (MoO x ) selective contact solar cells. The main idea is to study their potential application in small satellites for measurement and monitoring. The irradiation dose simulates the aggressive environment found in Low Earth Orbit (LEO), where many satellites currently use Group III-VI (GaInP/GaAs/Ge) solar cells due to their superior efficiency, albeit at a higher cost. The experimental approach includes fabrication, irradiation, and characterization methods. Our results show a decrease in fill factor (F.F.) and overall efficiency after irradiation, mainly caused by a decrease in shunt resistance and an increase in series resistance. In addition, open-circuit voltage (V oc ) and short-circuit current (I sc ) may be affected by displacement damage defects caused by the irradiation process within the active region or by the formation of new point defects.
Authors
- R. García-Hernansanz (ORCID: https://orcid.org/0000-0002-8419-8012)
- E. San Andrés
- J. Olea
- Joaquim Puigdollers (ORCID: https://orcid.org/0000-0002-1834-2565)
- S. Duarte-Cano (ORCID: https://orcid.org/0000-0003-4184-0332)
- S. Algaidy (ORCID: https://orcid.org/0000-0002-1164-6267)
- Milad Rezaei (ORCID: https://orcid.org/0000-0002-1233-8151)
- Ignacio Torres (ORCID: https://orcid.org/0000-0002-9971-3988)
- Rocío Barrio (ORCID: https://orcid.org/0000-0001-7662-0714)
- Pablo Ortega (ORCID: https://orcid.org/0000-0001-6577-614X)
- C. Voz (ORCID: https://orcid.org/0000-0002-0320-9606)
- A. del Prado
- F. Pérez-Zenteno
- D. Caudevilla
- Emilio Ros (ORCID: https://orcid.org/0000-0002-2573-1294)
- E. García-Hemme (ORCID: https://orcid.org/0000-0001-5328-8341)
- Juan Antonio Clemente (ORCID: https://orcid.org/0000-0002-7855-1051)
- R. Benítez-Fernández
Institutions
- Universidad Complutense de Madrid (ES)
- Instituto Tecnológico y de Energías Renovables (ES)
- Universidad Politécnica de Madrid (ES)
- Universitat Politècnica de Catalunya (ES)
Publication Details
- Journal
- Materials Science in Semiconductor Processing
- Published
- 2025-02-06
- DOI
- https://doi.org/10.1016/j.mssp.2025.109312
- Citations
- 2
- Primary Topic
- Silicon and Solar Cell Technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- Universidad Complutense de Madrid
- Ministerio de Ciencia e Innovación
- Research Executive Agency
- FP7 Coordination of Research Activities