High intensity low temperature (HILT) performance of space concentrator GaInP/GaInAs/Ge MJ SCs

Journal Article · Fri Sep 26 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4897021· OSTI ID:22307886

Kalyuzhnyy, Nikolay A.; Mintairov, Sergey A.; Soluyanov, Andrei A.; Timoshina, Nailya Kh. ^[1]; Gudovskikh, Alexander S. ^[2]; Luque, Antonio ^[3]

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1. Ioffe Physical-Technical Institute, 26 Polytekhnicheskaya str., St.-Petersburg, 194021 (Russian Federation)
2. Saint-Petersburg Academic University - Nanotechnology Research and Education Centre RAS, St. Petersburg, 194021 (Russian Federation)
3. Ioffe Physical-Technical Institute, 26 Polytekhnicheskaya str., St.-Petersburg, 194021, Russia and Instituto de Energia Solar, Universidad Politecnica de Madrid, Madrid (Spain)

In the work, the results of an investigation of GaInP/GaInAs/Ge MJ SCs intended for converting concentrated solar radiation, when operating at low temperatures (down to −190 °C) are presented. A kink of the cell I-V characteristic has been observed in the region close to V{sub oc} starting from −20°C at operation under concentrated sunlight. The causes for its occurrence have been analyzed and the reasons for formation of a built-in potential barrier for majority charge carriers at the n-GaInP/n-Ge isotype hetero-interface are discussed. The effect of charge carrier transport in n-GaInP/n-pGe heterostructures on MJ SC output characteristics at low temperatures has been studied including EL technique.

• OSTI ID: 22307886
• Journal Information: AIP Conference Proceedings, Vol. 1616, Issue 1; Conference: CPV-10: 10. international conference on concentrator photovoltaic systems, Albuquerque, NM (United States), 7-9 Apr 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
CHARGE CARRIERS
ELECTRIC CONDUCTIVITY
GALLIUM ARSENIDES
GERMANIUM
HETEROJUNCTIONS
INDIUM PHOSPHIDES
INTERFACES
OPERATION
PERFORMANCE
SOLAR CELLS
SOLAR CONCENTRATORS
SOLAR RADIATION