High Solar Flux Concentration Water Splitting with Hematite ( α-Fe2O3) Photoanodes

被引：73

作者：

Segev, Gideon ^{[1
]}

Dotan, Hen ^{[1
]}

Malviya, Kirtiman Deo ^{[1
]}

Kay, Asaf ^{[1
]}

Mayer, Matthew T. ^{[2
]}

Graetzel, Michael ^{[2
]}

Rothschild, Avner ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Mat Sci & Engn, IL-32000 Haifa, Israel

[2] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn, CH-1015 Lausanne, Switzerland

来源：

ADVANCED ENERGY MATERIALS | 2016年 / 6卷 / 01期

基金：

欧洲研究理事会; 以色列科学基金会;

关键词：

CELLS; PHOTOELECTRODES; OXIDATION; LIGHT; SEMICONDUCTORS; RECOMBINATION; ELECTRODES; CATALYSIS;

D O I：

10.1002/aenm.201500817

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：

The water splitting performance of hematite photoanodes is explored under a wide range of light intensities. The photocurrent scales linearly and the photovoltage scales logarithmically with the intensity, showing steeper rate than in photovoltaics, probably due to the enhanced ratio between charge transfer and recombination at high intensities. Hence, light concentration serves as another handle to enhance the efficiency of hematite photoanodes. © 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页数：7

共 51 条

[1] From natural to artificial photosynthesis [J].

Barber, James ;

Tran, Phong D. .

JOURNAL OF THE ROYAL SOCIETY INTERFACE, 2013, 10 (81)

[2] Charge carrier trapping, recombination and transfer in hematite (α-Fe2O3) water splitting photoanodes [J].

Barroso, Monica ;

Pendlebury, Stephanie R. ;

Cowan, Alexander J. ;

Durrant, James R. .

CHEMICAL SCIENCE, 2013, 4 (07) :2724-2734

[3] The Role of Cobalt Phosphate in Enhancing the Photocatalytic Activity of α-Fe2O3 toward Water Oxidation [J].

Barroso, Monica ;

Cowan, Alexander J. ;

Pendlebury, Stephanie R. ;

Graetzel, Michael ;

Klug, David R. ;

Durrant, James R. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (38) :14868-14871

[4] "In rust we trust". Hematite - the prospective inorganic backbone for artificial photosynthesis [J].

Bora, Debajeet K. ;

Braun, Artur ;

Constable, Edwin C. .

ENERGY & ENVIRONMENTAL SCIENCE, 2013, 6 (02) :407-425

[5] Cathodic shift of onset potential for water oxidation on a Ti4+ doped Fe2O3 photoanode by suppressing the back reaction [J].

Cao, Dapeng ;

Luo, Wenjun ;

Feng, Jianyong ;

Zhao, Xin ;

Li, Zhaosheng ;

Zou, Zhigang .

ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (02) :752-759

[6] Methods for comparing the performance of energy-conversion systems for use in solar fuels and solar electricity generation [J].

Coridan, Robert H. ;

Nielander, Adam C. ;

Francis, Sonja A. ;

McDowell, Matthew T. ;

Dix, Victoria ;

Chatman, Shawn M. ;

Lewis, Nathan S. .

ENERGY & ENVIRONMENTAL SCIENCE, 2015, 8 (10) :2886-2901

[7] Long-lived charge separated states in nanostructured semiconductor photoelectrodes for the production of solar fuels [J].

Cowan, Alexander J. ;

Durrant, James R. .

CHEMICAL SOCIETY REVIEWS, 2013, 42 (06) :2281-2293

[8] 26-PERCENT EFFICIENT POINT-JUNCTION CONCENTRATOR SOLAR-CELLS WITH A FRONT METAL GRID [J].

CUEVAS, A ;

SINTON, RA ;

MIDKIFF, NE ;

SWANSON, RM .

IEEE ELECTRON DEVICE LETTERS, 1990, 11 (01) :6-8

[9] On the Solar to Hydrogen Conversion Efficiency of Photoelectrodes for Water Splitting [J].

Dotan, Hen ;

Mathews, Nripan ;

Hisatomi, Takashi ;

Graetzel, Michael ;

Rothschild, Avner .

JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2014, 5 (19) :3330-3334

[10]

Dotan H, 2013, NAT MATER, V12, P158, DOI [10.1038/NMAT3477, 10.1038/nmat3477]

← 1 2 3 4 5 6 →