Abstract:
Procedures at NREL and Fraunhofer ISE for evaluating multijunction cells are detailed with a triple-junction GaInP/GaAs/Ge concentrator cell designed and grown at Spectro...Show MoreMetadata
Abstract:
Procedures at NREL and Fraunhofer ISE for evaluating multijunction cells are detailed with a triple-junction GaInP/GaAs/Ge concentrator cell designed and grown at Spectrolab and processed at NREL, and a tandem Fraunhofer ISE Ga/sub 0.35/In/sub 0.85/P/Ga/sub 0.83/In/sub 0.17/As cell as examples. The one-sun efficiency and I/sub sc/ for the triple-junction device measured at Fraunhofer ISE and NREL agreed within 0.2%, well below the /spl plusmn/6% uncertainty estimated by NREL. The procedures for determining the one-sun characteristics involve determining the quantum efficiency and using it for spectral correction during the I-V characterization. The characteristics under concentration are evaluated with a flash simulator.
Published in: Conference Record of the Twenty-Eighth IEEE Photovoltaic Specialists Conference - 2000 (Cat. No.00CH37036)
Date of Conference: 15-22 September 2000
Date Added to IEEE Xplore: 06 August 2002
Print ISBN:0-7803-5772-8
Print ISSN: 0160-8371
