Title :
Testing of dual-junction SCARLET modules and cells plus lessons learned
Author :
Eskenazi, Michael I. ; Murphy, David M. ; Ralph, Eugene L. ; Yoo, Henry I.
Author_Institution :
AEC-Able Eng., Goleta, CA, USA
fDate :
29 Sep-3 Oct 1997
Abstract :
Key simulator test methods and results for Solar Concentrator Array with Refractive Linear Element Technology (SCARLET) cells, modules, and module strings are presented from the NASA/JPL New Millennium DS1 program. Important observations and lessons learned are discussed. These findings include: (1) a significant efficiency increase for shunted low performing 1 sun cells at SCARLET´s ~7 sun concentration; (2) a decrease in temperature coefficient under SCARLET concentration; and (3) the importance of active germanium (third junction) screening during GaInP2/GaAs/Ge cell production especially when red reflecting covers are used
Keywords :
III-V semiconductors; elemental semiconductors; gallium arsenide; gallium compounds; germanium; indium compounds; p-n heterojunctions; solar cell arrays; solar cells; solar energy concentrators; space vehicle power plants; testing; 7 sun concentration; GaInP2-GaAs-Ge; GaInP2/GaAs/Ge cell production; NASA/JPL New Millennium DS1 program; Refractive Linear Element Technology; SCARLET solar cells testing; Solar Concentrator Array; active germanium screening; dual-junction SCARLET modules; dual-junction SCARLET solar cells; red reflecting covers; shunted low performing 1 sun cells; simulator test methods; temperature coefficient decrease; Gallium arsenide; Germanium; Lenses; Optical arrays; Optical refraction; Photovoltaic cells; Space technology; Sun; Temperature; Testing;
Conference_Titel :
Photovoltaic Specialists Conference, 1997., Conference Record of the Twenty-Sixth IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3767-0
DOI :
10.1109/PVSC.1997.654216
