Dye sensitized solar cell of TiO2 nanoparticle/nanorod composites prepared via low-temperature synthesis in oleic acid

被引：41

作者：

Saji, Viswanathan S. ^{[1
]}

Pyo, Myoungho ^{[1
]}

机构：

[1] Sunchon Natl Univ, Dept Printed Elect Engn, Chungnam 540742, South Korea

来源：

THIN SOLID FILMS | 2010年 / 518卷 / 22期

关键词：

TiO2; nanorods; Composite photoanode; Dye sensitized solar cell; RECOMBINATION; EFFICIENCY; IMPEDANCE; TRANSPORT; NANOTUBES; NANORODS; RUTILE; FILM;

D O I：

10.1016/j.tsf.2010.02.070

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titania (TiO2) nanorods (NRs) and nanoparticles (NPs) were synthesized using oleic acid as a surfactant and employed as photoanodes for dye sensitized solar cell (DSSC) fabrication. The synthesized NRs and NPs were characterized using transmission electron microscopy and X-ray diffraction. The photovoltaic performances were compared between NRs, NPs, and their composites. The results showed that the power conversion efficiencies (eta) of the composites depend on the relative compositions of NRs and NPs in photoanodes, reaching the greatest at 10% NR content. eta of the pure NRs DSSC was lower than that of the NPs DSSC. Electrochemical impedance spectroscopy revealed that the highest eta at 10% NRs is mainly due to reduced charge transport resistance at the TiO2/dye/electrolyte interface and electrolyte diffusion resistance, overcoming the reduction of the number of adsorbed dye molecules. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：6542 / 6546

页数：5

共 29 条

[11] Improvement of efficiency of dye-sensitized solar cells by reduction of internal resistance [J].

Han, LY ;

Koide, N ;

Chiba, Y ;

Islam, A ;

Komiya, R ;

Fuke, N ;

Fukui, A ;

Yamanaka, R .

APPLIED PHYSICS LETTERS, 2005, 86 (21) :1-3

[12] Modeling of an equivalent circuit for dye-sensitized solar cells [J].

Han, LY ;

Koide, N ;

Chiba, Y ;

Mitate, T .

APPLIED PHYSICS LETTERS, 2004, 84 (13) :2433-2435

[13] Dye-sensitized solar cells based on a single-crystalline TiO2 nanorod film [J].

Jiu, JT ;

Isoda, S ;

Wang, FM ;

Adachi, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (05) :2087-2092

[14] Nanorod-based dye-sensitized solar cells with improved charge collection efficiency [J].

Kang, Soon Hyung ;

Choi, Sang-Hyun ;

Kang, Moon-Sung ;

Kim, Jae-Yup ;

Kim, Hyun-Sik ;

Hyeon, Taeghwan ;

Sung, Yung-Eun .

ADVANCED MATERIALS, 2008, 20 (01) :54-+

[15] Surface modification of stretched TiO2 nanotubes for solid-state dye-sensitized solar cells [J].

Kang, Soon Hyung ;

Kim, Jae-Yup ;

Kim, Yukyeong ;

Kim, Hyun Sik ;

Sung, Yung-Eun .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (26) :9614-9623

[16] Transport-limited recombination of photocarriers in dye-sensitized nanocrystalline TiO2 solar cells [J].

Kopidakis, N ;

Benkstein, KD ;

van de Lagemaat, J ;

Frank, AJ .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (41) :11307-11315

[17] Growth of Oriented Single-Crystalline Rutile TiO2 Nanorods on Transparent Conducting Substrates for Dye-Sensitized Solar Cells [J].

Liu, Bin ;

Aydil, Eray S. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (11) :3985-3990

[18] Use of highly-ordered TiO2 nanotube arrays in dye-sensitized solar cells [J].

Mor, GK ;

Shankar, K ;

Paulose, M ;

Varghese, OK ;

Grimes, CA .

NANO LETTERS, 2006, 6 (02) :215-218

[19] Organic photovoltaic films [J].

Nelson, J .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2002, 6 (01) :87-95

[20] A LOW-COST, HIGH-EFFICIENCY SOLAR-CELL BASED ON DYE-SENSITIZED COLLOIDAL TIO2 FILMS [J].

OREGAN, B ;

GRATZEL, M .

NATURE, 1991, 353 (6346) :737-740

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