Hybrid photoelectrode by using vertically aligned rutile TiO2 nanowires inlaid with anatase TiO2 nanoparticles for dye-sensitized solar cells

被引：5
作者：
Kong, Eui-Hyun
Yoon, Yeon-Hee
Chang, Yong-June [1 ]
Jang, Hyun Myung
机构：
[1] Pohang Univ Sci & Technol POSTECH, Dept Mat Sci & Engn, Pohang 790784, South Korea
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 143卷 / 03期
基金：
新加坡国家研究基金会;
关键词：
Semiconductors; Nanostructures; Electron microscopy; Ultrasonic techniques; Light scattering; TRANSPARENT CONDUCTING OXIDE; LIGHT-SCATTERING; CONVERSION EFFICIENCY; ENERGY-CONVERSION; NANOTUBE ARRAYS; FILMS; PERFORMANCE; NANORODS; DESIGN; BEADS;
D O I：
10.1016/j.matchemphys.2013.11.060
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a hybrid photoelectrode fabricated by using single crystalline rutile TiO2 nanowires (NWs) inlaid with anatase TiO2 nanoparticles (NPs) for efficient dye-sensitized solar cells. For this purpose, similar to 4-mu m-thick vertically aligned NWs were synthesized on the FTO glass substrate through a solvothermal treatment. Then, as-prepared NW film was treated with the NP colloidal dispersion to construct the NW-NP film. In particular, the NWs offer a fast pathway for electron transport as well as light scattering effect. On the other hand, the inlaid NPs give an extra amount of space for the dye-uptake. Accordingly, the present NW-NP electrode exhibited 6.2% of the conversion efficiency, which corresponds to similar to 48% improvement over the efficiency of the NP-DSC. We attribute this notable result to the synergetic effects of the enhanced light confinement, charge collection, and dye-loading. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：1440 / 1445
页数：6
相关论文
共 38 条
[1]   Broadband light confinement using a hierarchically structured TiO2 multi-layer for dye-sensitized solar cells [J].
Chang, Yong-June ;
Kong, Eui-Hyun ;
Park, Yoon-Cheol ;
Jang, Hyun Myung .
JOURNAL OF MATERIALS CHEMISTRY A, 2013, 1 (34) :9707-9713
[2]   Mesoporous Anatase TiO2 Beads with High Surface Areas and Controllable Pore Sizes: A Superior Candidate for High-Performance Dye-Sensitized Solar Cells [J].
Chen, Dehong ;
Huang, Fuzhi ;
Cheng, Yi-Bing ;
Caruso, Rachel A. .
ADVANCED MATERIALS, 2009, 21 (21) :2206-+
[3]   Controlled synthesis of ZnO branched nanorod arrays by hierarchical solution growth and application in dye-sensitized solar cells [J].
Fang, Xiaoming ;
Peng, Lihua ;
Shang, Xiaoying ;
Zhang, Zhengguo .
THIN SOLID FILMS, 2011, 519 (19) :6307-6312
[4]   Vertically Aligned Single Crystal TiO2 Nanowire Arrays Grown Directly on Transparent Conducting Oxide Coated Glass: Synthesis Details and Applications [J].
Feng, Xinjian ;
Shankar, Karthik ;
Varghese, Oomman K. ;
Paulose, Maggie ;
Latempa, Thomas J. ;
Grimes, Craig A. .
NANO LETTERS, 2008, 8 (11) :3781-3786
[5]   Computer simulations of light scattering and absorption in dye-sensitized solar cells [J].
Ferber, J ;
Luther, J .
SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1998, 54 (1-4) :265-275
[6]   Multi-functional photoanode films using mesoporous TiO2 aggregate structure for efficient dye sensitized solar cells [J].
Gajjela, Satyanarayana Reddy ;
Yap, Chrisopher ;
Balaya, Palani .
JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (21) :10873-10882
[7]   Photoelectrochemical cells [J].
Grätzel, M .
NATURE, 2001, 414 (6861) :338-344
[8]   Hierarchical weeping willow nano-tree growth and effect of branching on dye-sensitized solar cell efficiency [J].
Herman, Indria ;
Yeo, Junyeob ;
Hong, Sukjoon ;
Lee, Daeho ;
Nam, Koo Hyun ;
Choi, Jun-ho ;
Hong, Won-hwa ;
Lee, Dongjin ;
Grigoropoulos, Costas P. ;
Ko, Seung Hwan .
NANOTECHNOLOGY, 2012, 23 (19)
[9]   Scattering spherical voids in nanocrystalline TiO2 -: enhancement of efficiency in dye-sensitized solar cells [J].
Hore, S ;
Nitz, P ;
Vetter, C ;
Prahl, C ;
Niggemann, M ;
Kern, R .
CHEMICAL COMMUNICATIONS, 2005, (15) :2011-2013
[10]   Dual-Function Scattering Layer of Submicrometer-Sized Mesoporous TiO2 Beads for High-Efficiency Dye-Sensitized Solar Cells [J].
Huang, Fuzhi ;
Chen, Dehong ;
Zhang, Xiao Li ;
Caruso, Rachel A. ;
Cheng, Yi-Bing .
ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (08) :1301-1305
1234