Enhanced Photoelectrochemical Hydrogen Production from Silicon Nanowire Array Photocathode

被引：298

作者：

Oh, Ilwhan ^{[1
]}

Kye, Joohong ^{[2
]}

Hwang, Seongpil ^{[2
]}

机构：

[1] KANC, Suwon 443270, Gyeonggi, South Korea

[2] Myongji Univ, Dept Chem, Yongin 449728, South Korea

来源：

NANO LETTERS | 2012年 / 12卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Silicon nanowire; metal-catalyzed electroless etching; photoelectrochemistry; hydrogen evolution reaction; solar water splitting; SOLAR; REDUCTION; WATER; PERFORMANCE; CONVERSION;

D O I：

10.1021/nl203564s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein we report that silicon nanowires (SiNWs) fabricated via metal-catalyzed electroless etching yielded a photoelectrochemical hydrogen generation performance superior to that of a planar Si, which is attributed to a lower kinetic overpotential due to a higher surface roughness, favorable shift in the flat-band potential, and light-trapping effects of the SiNW surface. The SiNW I photocathode yielded a photovoltage of 0.42 V, one of the highest values ever reported for hydrogen generation on p-type Si/electrolyte interfaces.

引用

收藏

页码：298 / 302

页数：5

相关论文

共 34 条

[1]

[Anonymous], CARBON ELECTROCHEMIC

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

BARD, AJ ;

FOX, MA .

ACCOUNTS OF CHEMICAL RESEARCH, 1995, 28 (03) :141-145

[3] PHOTO-REDUCTION AT ILLUMINATED P-TYPE SEMICONDUCTING SILICON PHOTOELECTRODES - EVIDENCE FOR FERMI LEVEL PINNING [J].

BOCARSLY, AB ;

BOOKBINDER, DC ;

DOMINEY, RN ;

LEWIS, NS ;

WRIGHTON, MS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (11) :3683-3688

[4] Photoelectrochemical Hydrogen Evolution Using Si Microwire Arrays [J].

Boettcher, Shannon W. ;

Warren, Emily L. ;

Putnam, Morgan C. ;

Santori, Elizabeth A. ;

Turner-Evans, Daniel ;

Kelzenberg, Michael D. ;

Walter, Michael G. ;

McKone, James R. ;

Brunschwig, Bruce S. ;

Atwater, Harry A. ;

Lewis, Nathan S. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2011, 133 (05) :1216-1219

[5] Energy-Conversion Properties of Vapor-Liquid-Solid-Grown Silicon Wire-Array Photocathodes [J].

Boettcher, Shannon W. ;

Spurgeon, Joshua M. ;

Putnam, Morgan C. ;

Warren, Emily L. ;

Turner-Evans, Daniel B. ;

Kelzenberg, Michael D. ;

Maiolo, James R. ;

Atwater, Harry A. ;

Lewis, Nathan S. .

SCIENCE, 2010, 327 (5962) :185-187

[6] PHOTOELECTROCHEMICAL REDUCTION OF N,N'-DIMETHYL-4,4'-BIPYRIDINIUM IN AQUEOUS-MEDIA AT P-TYPE SILICON - SUSTAINED PHOTOGENERATION OF A SPECIES CAPABLE OF EVOLVING HYDROGEN [J].

BOOKBINDER, DC ;

LEWIS, NS ;

BRADLEY, MG ;

BOCARSLY, AB ;

WRIGHTON, MS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1979, 101 (26) :7721-7723

[7] SYNTHESIS AND CHARACTERIZATION OF A PHOTOSENSITIVE INTERFACE FOR HYDROGEN GENERATION - CHEMICALLY MODIFIED P-TYPE SEMICONDUCTING SILICON PHOTO-CATHODES [J].

BOOKBINDER, DC ;

BRUCE, JA ;

DOMINEY, RN ;

LEWIS, NS ;

WRIGHTON, MS .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA-PHYSICAL SCIENCES, 1980, 77 (11) :6280-6284

[8] THE BAND MODEL AND THE ETCHING MECHANISM OF SILICON IN AQUEOUS KOH [J].

CHEN, LC ;

CHEN, MJ ;

LIEN, CH ;

WAN, CC .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1995, 142 (01) :170-176

[9] GaAs Core-Shell Nanowires for Photovoltaic Applications [J].

Czaban, Josef A. ;

Thompson, David A. ;

LaPierre, Ray R. .

NANO LETTERS, 2009, 9 (01) :148-154

[10] Coaxial Group III-Nitride Nanowire Photovoltaics [J].

Dong, Yajie ;

Tian, Bozhi ;

Kempa, Thomas J. ;

Lieber, Charles M. .

NANO LETTERS, 2009, 9 (05) :2183-2187

← 1 2 3 4 →