The effect of TiCl4-treated TiO2 compact layer on the performance of dye-sensitized solar cell

被引：140

作者：

Choi, Hongsik ^{[1
]}

Nahm, Changwoo ^{[1
]}

Kim, Jongmin ^{[1
]}

Moon, Joonhee ^{[1
]}

Nam, Seunghoon ^{[1
]}

Jung, Dae-Ryong ^{[1
]}

Park, Byungwoo ^{[1
]}

机构：

[1] Seoul Natl Univ, WCU Hybrid Mat Program, Dept Mat Sci & Engn, Res Inst Adv Mat, Seoul 151744, South Korea

来源：

CURRENT APPLIED PHYSICS | 2012年 / 12卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

Dye-sensitized solar cells; Compact layer; Blocking layer; TiCl4; treatment; Solar cells; ELECTROCHEMICAL PROPERTIES; LOW-COST; RECOMBINATION; ELECTROLYTE; EFFICIENCY; CONVERSION; ACID;

D O I：

10.1016/j.cap.2011.10.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to prevent the charge recombination at the interface between the transparent-conducting oxide (TCO) substrate and electrolyte, a TiO2 compact layer was deposited on the substrate by hydrolysis of TiCl4 aqueous solution. Optimum thickness of the compact layer was found to be similar to 25 nm, which showed similar to 24% increase in the power-conversion efficiency compared with the bare cell. Impedance spectra indicated that the interfacial charge-transfer resistance of TCO/electrolyte interface was increased by more than a factor of three with the TiO2 compact layer at 0.4 V. Moreover, the electron-carrier lifetime of the 25 nm-deposited cell was improved by a factor of five compared with the bare cell. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：737 / 741

页数：5

共 36 条

[1] An electrochemical study on the nature of trap states in nanocrystalline rutile thin films
Berger, Thomas
Lana-Villarreal, Teresa
Monllor-Satoca, Damian
Gomez, Roberto
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (27) : 9936 - 9942
[2] Determination of rate constants for charge transfer and the distribution of semiconductor and electrolyte electronic energy levels in dye-sensitized solar cells by open-circuit photovoltage decay method
Bisquert, J
Zaban, A
Greenshtein, M
Mora-Seró, I
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (41) : 13550 - 13559
[3] A breakthrough in the safety of lithium secondary batteries by coating the cathode material with AIPO4 nanoparticles
Cho, J
Kim, YW
Kim, B
Lee, JG
Park, B
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (14) : 1618 - 1621
[4] Influence of electrolyte in transport and recombination in dye-sensitized solar cells studied by impedance spectroscopy
Fabregat-Santiago, F
Bisquert, J
Garcia-Belmonte, G
Boschloo, G
Hagfeldt, A
[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2005, 87 (1-4) : 117 - 131
[5] Correlation between photovoltaic performance and impedance spectroscopy of dye-sensitized solar cells based on ionic liquids
Fabregat-Santiago, Francisco
Bisquert, Juan
Palomares, Emilio
Otero, Luis
Kuang, Daibin
Zakeeruddin, Shaik M.
Gratzel, Michael
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (17) : 6550 - 6560
[6] Solar energy conversion by dye-sensitized photovoltaic cells
Grätzel, M
[J]. INORGANIC CHEMISTRY, 2005, 44 (20) : 6841 - 6851
[7] Carrier leakage blocking effect of high temperature sputtered TiO2film on dye-sensitized mesoporous photoelectrode
Hattori, Ryo
Goto, Hajime
[J]. THIN SOLID FILMS, 2007, 515 (20-21) : 8045 - 8049
[8] Implication of device functioning due to back reaction of electrons via the conducting glass substrate in dye sensitized solar cells
Hore, S
Kern, R
[J]. APPLIED PHYSICS LETTERS, 2005, 87 (26) : 1 - 3
[9] Flexible supercapacitor based on polyaniline nanowires/carbon cloth with both high gravimetric and area-normalized capacitance
Horng, Ying-Ying
Lu, Yi-Chen
Hsu, Yu-Kuei
Chen, Chia-Chun
Chen, Li-Chyong
Chen, Kuei-Hsien
[J]. JOURNAL OF POWER SOURCES, 2010, 195 (13) : 4418 - 4422
[10] Control of dark current in photoelectrochemical (TiO2/I--I3-) and dye-sensitized solar cells
Ito, S
Liska, P
Comte, P
Charvet, RL
Péchy, P
Bach, U
Schmidt-Mende, L
Zakeeruddin, SM
Kay, A
Nazeeruddin, MK
Grätzel, M
[J]. CHEMICAL COMMUNICATIONS, 2005, (34) : 4351 - 4353

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