High-efficiency integrated multijunction photovoltaic/electrolysis systems for hydrogen production

被引：267

作者：

Khaselev, O ^{[1
]}

Bansal, A ^{[1
]}

Turner, JA ^{[1
]}

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2001年 / 26卷 / 02期

关键词：

D O I：

10.1016/S0360-3199(00)00039-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, two integrated PV/electrolysis systems were studied. An integrated PV/electrolysis device is a device where the PV system and the electrolyser 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-GalnP/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/cm(2) 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%. Published by Elsevier Science Ltd on behalf of the International Association for Hydrogen Energy.

引用

页码：127 / 132

页数：6

共 20 条

[1] ARTIFICIAL PHOTOSYNTHESIS - SOLAR SPLITTING OF WATER TO HYDROGEN AND OXYGEN [J].