Self-Biased Hybrid Piezoelectric-Photoelectrochemical Cell with Photocatalytic Functionalities

被引：103
作者：
Tan, Chuan Fu [1 ]
Ong, Wei Li [2 ]
Ho, Ghim Wei [1 ,2 ,3 ]
机构：
[1] Natl Univ Singapore, Engn Sci Programme, Singapore 117575, Singapore
[2] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117583, Singapore
[3] ASTAR, Inst Mat Res & Engn, Singapore 117602, Singapore
来源：
ACS NANO | 2015年 / 9卷 / 07期
关键词：
piezoelectric; photoelectrochemical; photocatalyst; zinc oxide; metal sulfide; heterostructure; solar hydrogen; TIO2 NANOTUBE ARRAYS; HETEROJUNCTION PHOTOELECTRODES; ENERGY; WATER; SOLAR; NANOWIRES; NANOGENERATORS; NANOSTRUCTURES; PERFORMANCE; DEGRADATION;
D O I：
10.1021/acsnano.5b03075
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Utilizing solar energy for environmental and energy remediations based on photocatalytic hydrogen (H-2) generation and water cleaning poses great challenges due to inadequate visible-light power conversion, high recombination rate, and intermittent availability of solar energy. Here, we report an energy-harvesting technology that utilizes multiple energy sources for development of sustainable operation of dual photocatalytic reactions. The fabricated hybrid cell combines energy harvesting from light and vibration to run a power-free photocatalytic process that exploits novel metal-semiconductor branched heterostructure (BHS) of its visible light absorption, high charge-separation efficiency, and piezoelectric properties to overcome the aforementioned challenges. The desirable characteristics of conductive flexible piezoelectrode in conjunction with pronounced light scattering of hierarchical structure originate intrinsically from the elaborate design yet facile synthesis of BHS. This self-powered photocatalysis system could potentially be used as H-2 generator and water treatment system to produce clean energy and water resources.
引用
收藏
页码：7661 / 7670
页数：10
相关论文
共 56 条
[1]   Formation of a ZnS/Zn(S,O) bilayer buffer on CuInS2 thin film solar cell absorbers by chemical bath deposition [J].
Baer, M. ;
Ennaoui, A. ;
Klaer, J. ;
Kropp, T. ;
Saez-Araoz, R. ;
Allsop, N. ;
Lauermann, I. ;
Schock, H. -W. ;
Lux-Steiner, M. C. .
JOURNAL OF APPLIED PHYSICS, 2006, 99 (12)
[2]   DEPTH PROFILE COMPOSITION STUDIES OF THIN-FILM CDS-CU2S SOLAR-CELLS USING XPS AND AES [J].
BHIDE, VG ;
SALKALACHEN, S ;
RASTOGI, AC ;
RAO, CNR ;
HEGDE, MS .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1981, 14 (09) :1647-&
[3]   Sound-Driven Piezoelectric Nanowire-Based Nanogenerators [J].
Cha, Seung Nam ;
Seo, Ju-Seok ;
Kim, Seong Min ;
Kim, Hyun Jin ;
Park, Young Jun ;
Kim, Sang-Woo ;
Kim, Jong Min .
ADVANCED MATERIALS, 2010, 22 (42) :4726-+
[4]  
Dongre JK, 2009, OPTOELECTRON ADV MAT, V3, P338
[5]   In situ deposition of Ag-Ag2S hybrid nanoparticles onto TiO2 nanotube arrays towards fabrication of photoelectrodes with high visible light photoelectrochemical properties [J].
Fan, Wenguang ;
Jewell, Simon ;
She, Yiyi ;
Leung, Michael K. H. .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2014, 16 (02) :676-680
[6]   Preferred heteroepitaxial orientations of ZnO nanorods on Ag [J].
Floro, J. A. ;
Michael, J. R. ;
Brewer, L. N. ;
Hsu, J. W. P. .
JOURNAL OF MATERIALS RESEARCH, 2010, 25 (07) :1352-1361
[7]   ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].
FUJISHIMA, A ;
HONDA, K .
NATURE, 1972, 238 (5358) :37-+
[8]   Optimal Ag2S nanoparticle incorporated TiO2 nanotube array for visible water splitting [J].
Gholami, Mostafa ;
Qorbani, Mohammad ;
Moradlou, Omran ;
Naseri, Naimeh ;
Moshfegh, Alireza Z. .
RSC ADVANCES, 2014, 4 (15) :7838-7844
[9]   Multifunctional Au-ZnO Plasmonic Nanostructures for Enhanced UV Photodetector and Room Temperature NO Sensing Devices [J].
Gogurla, Narendar ;
Sinha, Arun Kumar ;
Santra, Sumita ;
Manna, Santanu ;
Ray, Samit Kumar .
SCIENTIFIC REPORTS, 2014, 4
[10]   Piezoelectric gated diode of a single ZnO nanowire [J].
He, Jr-Hau ;
Hsin, Cheng L. ;
Liu, Jin ;
Chen, Lih J. ;
Wang, Zhong L. .
ADVANCED MATERIALS, 2007, 19 (06) :781-+
123456