Final qualification test results of XTJ triple junction space solar cell to AIAA - S-111 - 2005 and Spectrolab test standards

Author

Jun, Bongim ; Fetzer, Chris M. ; Rouhani, Kaveh ; Wise, William G. ; Krut, Dmitri ; Bui, Kiem ; Hom, Dennis ; Cho, Clara J. ; Wu, Jerry Z. ; Anaya, Ricardo ; Bardfield, Rina ; Russell, Dennis A. ; Leung, Philip ; Gillanders, Mark ; Sharma, Surya K. ; Hanl

Author_Institution

Spectrolab Inc. A Boeing Co., Sylmar, CA, USA

fYear

2010

fDate

20-25 June 2010

Abstract

Spectrolab successfully completed the qualification of its latest and final triple junction space solar cell, 30% class XTJ (neXt Triple Junction), per AIAA S-111-2005 and Spectrolab test standards. The final qualification and characterization test results are presented in this paper. XTJ exhibits a 4.2 % power gain over Spectrolab´s current space PV, UTJ, at both beginning of life and end of life. Moreover, nearly 3% lower solar absorptance of XTJ allows for a cooler operating temperature in a typical GEO mission. XTJ showed excellent front and backside welding contact integrities, insensitivity to ESDS, and negligible loss from humidity and GEO thermal cycle tests. Currently Spectrolab´s large area XTJ (59.65cm²) is undergoing qualification per Spectrolab specified test standards.

Keywords

solar cells; space power generation; AIAA S-111-2005 standards; Spectrolab test standards; XTJ triple junction space solar cell; next triple junction; Electrostatic discharge; Lighting; Photovoltaic cells; Protons; Qualifications; Temperature distribution; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE

Conference_Location

Honolulu, HI

ISSN

0160-8371

Print_ISBN

978-1-4244-5890-5

Type

conf

DOI

10.1109/PVSC.2010.5614561

Filename

5614561