TY - JOUR
T1 - High-Efficiency Integrated Multijunction Photovoltaic/Electrolysis Systems for Hydrogen Production
AU - Khaselev, O.
AU - Bansal, A.
AU - Turner, J. A.
PY - 2001
Y1 - 2001
N2 - In this study, two integrated PV/electrolysis systems were studied. An integrated PV/electrolysis device is a device where the PV system and the electrolyzer are combined into a single system. In the case studied here, the areas of the PV device and the electrolyzer are identical. Multijunction photovoltaic (PV)/electrolysis configurations were investigated, and a high solar-to-hydrogen conversion efficiency cell demonstrated. The energy diagram of the configuration has been evaluated and exemplified with n/p, n/p-GaInP/GaAs(Pt)/KOH electrolyte and triple-junction p-i-n a-Si(Pt)/KOH electrolyte photovoltaic/electrolysis cells. The efficiency of the cells was determined based on the short-circuit photocurrent. Measurements were obtained both indoors under 100-mW/cm2 insolation, and outdoors. For the a-Si system, a 7.8% solar-to-hydrogen conversion efficiency was demonstrated. For the GaAs/GaInP2 system, the solar-to-hydrogen conversion efficiency was over 16%.
AB - In this study, two integrated PV/electrolysis systems were studied. An integrated PV/electrolysis device is a device where the PV system and the electrolyzer are combined into a single system. In the case studied here, the areas of the PV device and the electrolyzer are identical. Multijunction photovoltaic (PV)/electrolysis configurations were investigated, and a high solar-to-hydrogen conversion efficiency cell demonstrated. The energy diagram of the configuration has been evaluated and exemplified with n/p, n/p-GaInP/GaAs(Pt)/KOH electrolyte and triple-junction p-i-n a-Si(Pt)/KOH electrolyte photovoltaic/electrolysis cells. The efficiency of the cells was determined based on the short-circuit photocurrent. Measurements were obtained both indoors under 100-mW/cm2 insolation, and outdoors. For the a-Si system, a 7.8% solar-to-hydrogen conversion efficiency was demonstrated. For the GaAs/GaInP2 system, the solar-to-hydrogen conversion efficiency was over 16%.
UR - http://www.scopus.com/inward/record.url?scp=0035254142&partnerID=8YFLogxK
U2 - 10.1016/S0360-3199(00)00039-2
DO - 10.1016/S0360-3199(00)00039-2
M3 - Article
AN - SCOPUS:0035254142
SN - 0360-3199
VL - 26
SP - 127
EP - 132
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 2
ER -