Photoelectrochemical water reduction over wide gap (Ag,Cu)(In,Ga)S2 thin film photocathodes

被引:19
作者
Septina, Wilman [1 ,2 ]
Sugimoto, Minori [2 ]
Chao, Ding [3 ]
Shen, Qing [3 ]
Nakatsuka, Shigeru [4 ]
Nose, Yoshitaro [4 ]
Harada, Takashi [2 ]
Ikeda, Shigeru [5 ]
机构
[1] Univ Zurich, Dept Chem, Winterthurerstr 190, CH-8057 Zurich, Switzerland
[2] Osaka Univ, Res Ctr Solar Energy Chem, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan
[3] Univ Electrocommun, Dept Engn Sci, Fac Informat & Engn, 1-5-1 Chofugaoka, Chofu, Tokyo 1828585, Japan
[4] Kyoto Univ, Dept Mat Sci & Engn, Kyoto 6068501, Japan
[5] Konan Univ, Dept Chem, Higashinada Ku, 8-9-1 Okamoto, Kobe, Hyogo 6588501, Japan
关键词
SOLAR HYDROGEN-PRODUCTION; LAYER; TIO2; EFFICIENT; EVOLUTION; CDS;
D O I
10.1039/c7cp01348e
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 effects of partial replacement of Cu with Ag in a Cu(In,Ga) S-2 (CIGS) thin film on its structural, optical, electrostructural, and photoelectrochemical (PEC) properties were investigated, in order to improve its performance for PEC water reduction under sunlight illumination. Results from X-ray diffraction (XRD) analyses revealed the successful partial replacement of Cu with Ag to form solid-solutions with different Ag/(Ag + Cu) ratios (A(x)CIGS, x = Ag/(Ag + Cu) = 0.1, 0.2, 0.3 and 0.4), as confirmed by a gradual change in the (112) reflections to smaller 2 theta angles with increasing Ag/(Ag + Cu) ratio. Analyses of the photoabsorption properties of the materials using photoacoustic spectroscopy indicated changes in the band gap energies associated with increasing the Ag/(Ag + Cu) ratio. In addition, valence band maximum potentials of A(x) CIGS were deepened gradually with increasing Ag/(Ag + Cu) ratio. After modifying these A(x) CIGS films with a CdS ultrathin (ca. 70 nm) layer and a Pt catalyst, the PEC water reduction properties were evaluated in an electrolyte solution with the pH adjusted to 6.5, under simulated sunlight (AM 1.5G) radiation. Compared to the CdS- and Pt-modified Ag-free A(x) CIGS (A(0) CIGS) films, appreciable enhancements in the PEC properties were observed for electrodes based on A(x) CIGS (x 4 0) films, and the best PEC performance was obtained for the electrode based on the A(0.2) CIGS film. However, the electrode derived from the A(x) CIGS film with Ag/(Ag + Cu) ratios higher than 0.3 showed diminished PEC properties due to the partial conversion of its semiconducting properties from p-type to n-type.
引用
收藏
页码:12502 / 12508
页数:7
相关论文
共 29 条
[1]  
[Anonymous], J PHYS CHEM SOLIDS
[2]   The hydrogen economy [J].
Crabtree, GW ;
Dresselhaus, MS ;
Buchanan, MV .
PHYSICS TODAY, 2004, 57 (12) :39-44
[3]   Origin of the Distinct Diffusion Behaviors of Cu and Ag in Covalent and Ionic Semiconductors [J].
Deng, Hui-Xiong ;
Luo, Jun-Wei ;
Li, Shu-Shen ;
Wei, Su-Huai .
PHYSICAL REVIEW LETTERS, 2016, 117 (16)
[4]   Progress in thin film CIGS photovoltaics - Research and development, manufacturing, and applications [J].
Feurer, Thomas ;
Reinhard, Patrick ;
Avancini, Enrico ;
Bissig, Benjamin ;
Lockinger, Johannes ;
Fuchs, Peter ;
Carron, Romain ;
Weiss, Thomas Paul ;
Perrenoud, Julian ;
Stutterheim, Stephan ;
Buecheler, Stephan ;
Tiwari, Ayodhya N. .
PROGRESS IN PHOTOVOLTAICS, 2017, 25 (07) :645-667
[5]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[6]   A Bottom-Up Approach toward All-Solution-Processed High-Efficiency Cu(In,Ga)S2 Photocathodes for Solar Water Splitting [J].
Guijarro, Nestor ;
Prevot, Mathieu S. ;
Yu, Xiaoyun ;
Jeanbourquin, Xavier A. ;
Bornoz, Pauline ;
Bouree, Wiktor ;
Johnson, Melissa ;
Le Formal, Florian ;
Sivula, Kevin .
ADVANCED ENERGY MATERIALS, 2016, 6 (07)
[7]   Platinum and indium sulfide-modified CuInS2 as efficient photocathodes for photoelectrochemical water splitting [J].
Gunawan ;
Septina, Wilman ;
Ikeda, Shigeru ;
Harada, Takashi ;
Minegishi, Tsutomu ;
Domen, Kazunari ;
Matsumura, Michio .
CHEMICAL COMMUNICATIONS, 2014, 50 (64) :8941-8943
[8]   Photoluminescence Properties and Its Origin of AgInS2 Quantum Dots with Chalcopyrite Structure [J].
Hamanaka, Yasushi ;
Ogawa, Tetsuya ;
Tsuzuki, Masakazu ;
Kuzuya, Toshihiro .
JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (05) :1786-1792
[9]   Pt/In2S3/CdS/Cu2ZnSnS4 Thin Film as an Efficient and Stable Photocathode for Water Reduction under Sunlight Radiation [J].
Jiang, Feng ;
Gunawan ;
Harada, Takashi ;
Kuang, Yongbo ;
Minegishi, Tsutomu ;
Domen, Kazunari ;
Ikeda, Shigeru .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2015, 137 (42) :13691-13697
[10]   An effect of Ag(I)-substitution at Cu sites in CuGaS2 on photocatalytic and photoelectrochemical properties for solar hydrogen evolution [J].
Kaga, Hiroshi ;
Tsutsui, Yuko ;
Nagane, Akira ;
Iwase, Akihide ;
Kudo, Akihiko .
JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (43) :21815-21823