Transparent ALD-grown Ta2O5 protective layer for highly stable ZnO photoelectrode in solar water splitting

被引：55

作者：

Li, Chengcheng ^{[1
,2
]}

Wang, Tuo ^{[1
,2
]}

Luo, Zhibin ^{[1
,2
]}

Zhang, Dong ^{[1
,2
]}

Gong, Jinlong ^{[1
,2
]}

机构：

[1] Tianjin Univ, Key Lab Green Chem Technol, Minist Educ, Sch Chem Engn & Technol, Tianjin, Peoples R China

[2] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2015年 / 51卷 / 34期

基金：

中国国家自然科学基金;

关键词：

THIN-FILMS; PHOTOANODES;

D O I：

10.1039/c5cc01015b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This communication describes a highly stable ZnO/Ta2O5 photoanode with Ta2O5 deposited by atomic layer deposition. The ultrathin Ta2O5 protective layer prevents corrosion of ZnO and reduces surface carrier recombination, leading to a nearly two-fold increase of photo-conversion efficiency. The transparency of Ta2O5 to sunlight is identified as the main reason for the excellent stability of the photoelectrode for hours.

引用

页码：7290 / 7293

页数：4

共 21 条

[1] X-ray photoelectron spectroscopy of thermal thin Ta2O5 films on Si [J].

Atanassova, E ;

Spassov, D .

APPLIED SURFACE SCIENCE, 1998, 135 (1-4) :71-82

[2] Tantalum pentoxide (Ta2O5) thin films for advanced dielectric applications [J].

Chaneliere, C ;

Autran, JL ;

Devine, RAB ;

Balland, B .

MATERIALS SCIENCE & ENGINEERING R-REPORTS, 1998, 22 (06) :269-322

[3]

Chen YW, 2011, NAT MATER, V10, P539, DOI [10.1038/NMAT3047, 10.1038/nmat3047]

[4] Photocatalytic CdSe QDs-decorated ZnO nanotubes: an effective photoelectrode for splitting water [J].

Chouhan, Neelu ;

Yeh, Chai Ling ;

Hu, Shu-Fen ;

Liu, Ru-Shi ;

Chang, Wen-Sheng ;

Chen, Kuei-Hsien .

CHEMICAL COMMUNICATIONS, 2011, 47 (12) :3493-3495

[5] Amorphous TiO2 coatings stabilize Si, GaAs, and GaP photoanodes for efficient water oxidation [J].

Hu, Shu ;

Shaner, Matthew R. ;

Beardslee, Joseph A. ;

Lichterman, Michael ;

Brunschwig, Bruce S. ;

Lewis, Nathan S. .

SCIENCE, 2014, 344 (6187) :1005-1009

[6] Passivating surface states on water splitting hematite photoanodes with alumina overlayers [J].

Le Formal, Florian ;

Tetreault, Nicolas ;

Cornuz, Maurin ;

Moehl, Thomas ;

Graetzel, Michael ;

Sivula, Kevin .

CHEMICAL SCIENCE, 2011, 2 (04) :737-743

[7] p-Type InP Nanopillar Photocathodes for Efficient Solar-Driven Hydrogen Production [J].

Lee, Min Hyung ;

Takei, Kuniharu ;

Zhang, Junjun ;

Kapadia, Rehan ;

Zheng, Maxwell ;

Chen, Yu-Ze ;

Nah, Junghyo ;

Matthews, Tyler S. ;

Chueh, Yu-Lun ;

Ager, Joel W. ;

Javey, Ali .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2012, 51 (43) :10760-10764

[8] Stabilization of n-cadmium telluride photoanodes for water oxidation to O2(g) in aqueous alkaline electrolytes using amorphous TiO2 films formed by atomic-layer deposition [J].

Lichterman, Michael F. ;

Carim, Azhar I. ;

McDowell, Matthew T. ;

Hu, Shu ;

Gray, Harry B. ;

Brunschwig, Bruce S. ;

Lewis, Nathan S. .

ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (10) :3334-3337

[9] Enhancing Water Splitting Activity and Chemical Stability of Zinc Oxide Nanowire Photoanodes with Ultrathin Titania Shells [J].

Liu, Mingzhao ;

Nam, Chang-Yong ;

Black, Charles T. ;

Kamcev, Jovan ;

Zhang, Lihua .

JOURNAL OF PHYSICAL CHEMISTRY C, 2013, 117 (26) :13396-13402

[10] Atomic layer deposition for nanofabrication and interface engineering [J].

Liu, Monan ;

Li, Xianglin ;

Karuturi, Siva Krishna ;

Tok, Alfred Iing Yoong ;

Fan, Hong Jin .

NANOSCALE, 2012, 4 (05) :1522-1528

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