A gel-state dye-sensitized hierarchically structured ZnO solar cell: Retention of power conversion efficiency and durability

被引：8

作者：

Bi, Shi-Qing ^{[1
]}

Zheng, Yan-Zhen ^{[1
]}

Ding, Hai-Yang ^{[2
]}

Tao, Xia ^{[1
]}

Chen, Jian-Feng ^{[3
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

[2] Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China

[3] Beijing Univ Chem Technol, Res Ctr, Minist Educ High Grav Engn & Technol, Beijing 100029, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2013年 / 114卷

基金：

高等学校博士学科点专项科研基金;

关键词：

Dye-sensitized solar cells; ZnO aggregates; Gel electrolyte; Long-term durability; SOLID-STATE; NANOCRYSTALLITES; PERFORMANCE; IMPEDANCE; RECOMBINATION; TRANSPORT; FILMS;

D O I：

10.1016/j.electacta.2013.10.129

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A gel-state dye-sensitized hierarchically structured ZnO solar cell (ZnO-DSC) was fabricated by using dissoluble polystyrene (PS) nanobeads on Pt counter electrode as a gelator and ZnO nanocrystalline aggregates as a photo anode. Under an optimized acetonitrile/valeronitrile mixture solvent i.e. 85% v/v, the photovoltaic conversion efficiency (PCE) of the gel-state ZnO-DSC reached maximum up to 4.08%, comparable to a liquid electrolyte based DSC with value of 4.12% upon being measured under 1 sun illumination. The gel-state ZnO cell performance was also characterized and discussed by J-V data, IPCE, and EIS. The decay test results showed that the gel electrolyte based DSC possessed better photovoltaic stability than the liquid electrolyte based DSC in whether indoors or outdoors. Particularly, the PCE of the gel electrolyte based DSC decayed only 12% after 20 days under full sunlight outdoors, superior to the liquid electrolyte based DSC with an efficiency loss of 37%. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：700 / 705

页数：6

共 30 条

[1] Electron injection and recombination in Ru(dcbpy)2(NCS)2 sensitized nanostructured ZnO
Bauer, C
Boschloo, G
Mukhtar, E
Hagfeldt, A
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (24) : 5585 - 5588
[2] Synthesis and characterization of ZnO nanowires and their integration into dye-sensitized solar cells
Baxter, J. B.
Walker, A. M.
van Ommering, K.
Aydil, E. S.
[J]. NANOTECHNOLOGY, 2006, 17 (11) : S304 - S312
[3] Nanowire-based dye-sensitized solar cells
Baxter, JB
Aydil, ES
[J]. APPLIED PHYSICS LETTERS, 2005, 86 (05) : 1 - 3
[4] High-efficiency metal-free organic-dye-sensitized solar cells with hierarchical ZnO photoelectrode
Cheng, Hsin-Ming
Hsieh, Wen-Feng
[J]. ENERGY & ENVIRONMENTAL SCIENCE, 2010, 3 (04) : 442 - 447
[5] Hierarchically structured ZnO film for dye-sensitized solar cells with enhanced energy conversion efficiency
Chou, Tammy P.
Zhang, Qifeng
Fryxell, Glen E.
Cao, Guozhong
[J]. ADVANCED MATERIALS, 2007, 19 (18) : 2588 - +
[6] Solid-state dye-sensitized hierarchically structured ZnO solar cells
Deng, Jie
Zheng, Yan-Zhen
Hou, Qian
Chen, Jian-Feng
Zhou, Weilie
Tao, Xia
[J]. ELECTROCHIMICA ACTA, 2011, 56 (11) : 4176 - 4180
[7] Vertically-aligned nanostructures of ZnO for excitonic solar cells: a review
Gonzalez-Valls, Irene
Lira-Cantu, Monica
[J]. ENERGY & ENVIRONMENTAL SCIENCE, 2009, 2 (01) : 19 - 34
[8] The effect of hydrothermal growth temperature on preparation and photoelectrochemical performance of ZnO nanorod array films
Guo, M
Diao, P
Wang, XD
Cai, SM
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 2005, 178 (10) : 3210 - 3215
[9] Guo M, 2004, CHINESE CHEM LETT, V15, P1113
[10] Modeling of an equivalent circuit for dye-sensitized solar cells
Han, LY
Koide, N
Chiba, Y
Mitate, T
[J]. APPLIED PHYSICS LETTERS, 2004, 84 (13) : 2433 - 2435

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