High-Efficiency Integrated Multijunction Photovoltaic/Electrolysis Systems for Hydrogen Production

O. Khaselev; A. Bansal; J. A. Turner

doi:10.1016/S0360-3199(00)00039-2

High-Efficiency Integrated Multijunction Photovoltaic/Electrolysis Systems for Hydrogen Production

O. Khaselev
, A. Bansal
, J. A. Turner

Chemistry and Nanoscience

National Renewable Energy Laboratory

Research output: Contribution to journal › Article › peer-review

319 Scopus Citations

Abstract

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%.

Original language	American English
Pages (from-to)	127-132
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	26
Issue number	2
DOIs	https://doi.org/10.1016/S0360-3199(00)00039-2 https://doi.org/10.1016/S0360-3199(00)00039-2
State	Published - 2001

NLR Publication Number

NREL/JA-590-27780

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title = "High-Efficiency Integrated Multijunction Photovoltaic/Electrolysis Systems for Hydrogen Production",

abstract = "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\%.",

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year = "2001",

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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 - https://www.scopus.com/pages/publications/0035254142

U2 - 10.1016/S0360-3199(00)00039-2

DO - 10.1016/S0360-3199(00)00039-2

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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 -

High-Efficiency Integrated Multijunction Photovoltaic/Electrolysis Systems for Hydrogen Production

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