Qualification status of 30% efficient next triple junction (XTJ) GaInP2/GaAs/Ge solar cells to AIAA S-111-2005 standard

Author

Jun, Bongim ; Fetzer, Chris ; Rouhani, Kaveh ; Bardfield, Rina ; Bui, Kiem ; Hom, Dennis ; Gillanders, Mark ; Sharma, S.K.

Author_Institution

Spectrolab Inc., Sylmar, CA, USA

fYear

2009

fDate

7-12 June 2009

Abstract

Spectrolab presents the qualification status of its latest triple junction space solar cell, neXt Triple Junction (XTJ). The beginning of life efficiency averages 29.9% at maximum power (AM0, 28Â°C, 135.3 mW/cm²). The qualification in progress complies with the AIAA S-111-2005 standards for bare cell, CIC, and coupon level tests. Thermal cycle GEO coupons built for engineering confidence prior to the qualification showed excellent mechanical and electrical performance. Interim qualification status and test results are discussed.

Keywords

III-V semiconductors; elemental semiconductors; gallium compounds; germanium; indium compounds; semiconductor heterojunctions; solar cells; AIAA S-111-2005 standard; GaInP₂-GaAs-Ge; coupon level tests; life efficiency; qualification status; thermal cycle GEO coupons; triple junction space solar cell; Aerospace engineering; Assembly; Design engineering; Photovoltaic cells; Power engineering and energy; Qualifications; Temperature; Testing; Thermal degradation; Thermal stresses;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE

Conference_Location

Philadelphia, PA

ISSN

0160-8371

Print_ISBN

978-1-4244-2949-3

Electronic_ISBN

0160-8371

Type

conf

DOI

10.1109/PVSC.2009.5411367

Filename

5411367