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Title: Chapter 12: High-Efficiency Water Splitting Systems

Abstract

In this chapter, we discuss the prerequisites for high-efficiency water splitting and their implementation with tandem cells based on absorbers of the III-V semiconductor material class. A brief outline of efficiency-limiting factors shows that at a given set of boundary conditions, such as catalyst performance, the optimum tandem absorbers require a very precise control of opto-electronic properties, as facilitated by the III-V compounds. After a short history of high efficiency solar energy conversion, we present recent implementations of highly efficient water splitting systems with solar-to-hydrogen efficiencies of 14-16% together with an outlook on further improvements. Even if other absorber systems turn out to be more cost-competitive, the III-V systems currently serve as a testbed for high-efficiency water splitting in general, with lessons to be learned for catalyst requirements, cell design, and efficiency validation. We conclude with a discussion of appropriate efficiency benchmarking routines, outlining potential pitfalls for multi-junction absorbers and how to avoid them.

Authors:
 [1];  [2]; ORCiD logo [3]
  1. University of Cambridge
  2. Fraunhofer ISI
  3. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1485546
Report Number(s):
NREL/CH-5900-72919
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Book
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; water splitting; tandem solar cells; semiconductors

Citation Formats

May, Matthias M., Doscher, Henning, and Turner, John A. Chapter 12: High-Efficiency Water Splitting Systems. United States: N. p., 2018. Web. doi:10.1039/9781788010313-00454.
May, Matthias M., Doscher, Henning, & Turner, John A. Chapter 12: High-Efficiency Water Splitting Systems. United States. doi:10.1039/9781788010313-00454.
May, Matthias M., Doscher, Henning, and Turner, John A. Fri . "Chapter 12: High-Efficiency Water Splitting Systems". United States. doi:10.1039/9781788010313-00454.
@article{osti_1485546,
title = {Chapter 12: High-Efficiency Water Splitting Systems},
author = {May, Matthias M. and Doscher, Henning and Turner, John A},
abstractNote = {In this chapter, we discuss the prerequisites for high-efficiency water splitting and their implementation with tandem cells based on absorbers of the III-V semiconductor material class. A brief outline of efficiency-limiting factors shows that at a given set of boundary conditions, such as catalyst performance, the optimum tandem absorbers require a very precise control of opto-electronic properties, as facilitated by the III-V compounds. After a short history of high efficiency solar energy conversion, we present recent implementations of highly efficient water splitting systems with solar-to-hydrogen efficiencies of 14-16% together with an outlook on further improvements. Even if other absorber systems turn out to be more cost-competitive, the III-V systems currently serve as a testbed for high-efficiency water splitting in general, with lessons to be learned for catalyst requirements, cell design, and efficiency validation. We conclude with a discussion of appropriate efficiency benchmarking routines, outlining potential pitfalls for multi-junction absorbers and how to avoid them.},
doi = {10.1039/9781788010313-00454},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {9}
}

Book:
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