Title :
High performance 5J and 6J direct bonded (SBT) space solar cells
Author :
P.T. Chiu;D.C Law;S.B. Singer;D. Bhusari;A. Zakaria;X.Q. Liu;S. Mesropian;N.H. Karam
Author_Institution :
Spectrolab Inc. a wholly owned subsidiary of the Boeing Company, Sylmar, CA, 91342, USA
fDate :
6/1/2015 12:00:00 AM
Abstract :
Spectrolab has achieved a record 36% 5J direct bonded cell, measured under an AM0 space spectrum. The increase in efficiency over previous high performance 5J cells was achieved via voltage improvements to subcell 2 and 4 of the multijunction stack. Spectrolab has also successfully grown components necessary to implement a 6J direct bonded cell with an efficiency target of 38%. In particular the bottom 3J cells have been grown with bandgaps near the target values and an average voltage bandgap offset of 0.36 V.
Keywords :
"Mechanical variables measurement","NASA","Electroluminescence","Epitaxial growth","Epitaxial layers","Atmospheric measurements","Gain measurement"
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd
DOI :
10.1109/PVSC.2015.7355673
