Development status of triple-junction solar cells optimized for low intensity low temperature applications

• Published in: 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC) pp. 3237 - 3242
• Main Authors: Baur, Carsten, Khorenko, Victor, Siefer, Gerald, Bourgoin, Jacques C., Casale, Mariacristina, Campesato, Roberta, Duzellier, Sophie, Inguimbert, Virginie
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-06-2013
• Subjects: Annealing; III-V semiconductor materials; Jupiter; Photovoltaic cells; Radiation effects; Temperature; Temperature dependence; Temperature measurement
• ISSN: 0160-8371
• DOI: 10.1109/PVSC.2013.6745142

Latest results of 3G28 triple-junction solar cells manufactured by AZUR SPACE Solar Power GmbH under low intensity low temperature (LILT) conditions are reported. Excellent beginning of life (BOL) efficiencies in the order of 35% at 50W/m 2 and -150°C have been realized on a large number of cells with standard and LILT optimized design. Furthermore, temperature dependent irradiation tests with 1 MeV electrons and 1 MeV protons have been performed on LILT optimized 3G28 solar cells. Initial results show some indications of temperature annealing but also other stabilization effects already present at LILT conditions.