Temperature-Induced Degradation of Thin-Film III–V Solar Cells for Space Applications

Autor: Ed Bongers, Rosalinda H. van Leest, John J. Schermer, Gerard Bauhuis, Natasha Gruginskie, Elias Vlieg, Hyenseok Cheun, Remco van der Heijden, Wonki Yoon, Peter Mulder, Simone C. W. van Laar, Heon-Min Lee
Rok vydání: 2017
Předmět:
Zdroj: IEEE Journal of Photovoltaics
IEEE Journal of Photovoltaics, 7, 702-708
IEEE Journal of Photovoltaics, 7, 2, pp. 702-708
ISSN: 2156-3381
DOI: 10.1109/jphotov.2016.2642642
Popis: High-efficiency, thin-film III–V solar cells offer excellent characteristics for implementation in flexible solar panels for space applications. In order to investigate the space compatibility of such cells, the temperature-induced degradation of both substrate-based cells with Au and Au/Cu contacts and thin-film cells on Au and Cu carriers was studied by accelerated ageing testing (AAT) at 200 $^\circ$ C. With less than a 3% decrease in efficiency after 37 days at 200 $^\circ$ C (equivalent to 10 years at 100 $^\circ$ C for E $_{{a}}$ = 0.70 eV), the substrate-based cells show excellent results. With a 10% decrease in efficiency after 37 days of AAT, the thin-film cells on an Au carrier exhibit promising results, given the early stage of development of the thin-film cells. On the other hand, severe degradation is observed for thin-film cells on a Cu carrier (decrease in efficiency $>$ 60% after 37 days of AAT). At least two factors contribute to this severe degradation: thermally induced stress and Cu diffusion.
Databáze: OpenAIRE