Simple Preparation of Fluorine-Doped TiO2 Photoanode for High Performance Dye Sensitized Solar Cells

被引：22

作者：

Song, Jun-Ling ^{[1
,2
]}

Wang, Xiu ^{[3
]}

Wong, C. C. ^{[3
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

[2] Nanyang Technol Univ, Sch Phys & Math Sci, Singapore 637371, Singapore

[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

ELECTROCHIMICA ACTA | 2015年 / 173卷

基金：

中国国家自然科学基金;

关键词：

Dye Sensitized Solar Cells; TiO2; Photoanode; Improving electron Transport; Retarding Charge Recombination; Surface Treatment; ELECTRON-TRANSPORT; IMPROVED EFFICIENCY; RECOMBINATION; IMPEDANCE; GENERATION; DIFFUSION; MODEL; FILM;

D O I：

10.1016/j.electacta.2015.05.118

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

TiO2 nanocrystallites with titanium (IV) fluoride treatment were fabricated and studied as dye sensitized solar cells photoanode. F doping into pre-existing mesoporous TiO2 is achieved by a simple hydrolysis method. Overall photo-to-current conversion-efficiency of the device could be enhanced up to 23% due to the increase of photocurrent density, fill factor and open-circuit voltage, compared with undoped TiO2. From electrochemical impedance measurements, we deduce that the presence of F dopants enhances cell performance by improving the charge transport and retarding the recombination process in the photoanode. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：834 / 838

页数：5

共 37 条

[1] Determination of parameters of electron transport in dye-sensitized solar cells using electrochemical impedance spectroscopy [J].

Adachi, Motonari ;

Sakamoto, Masaru ;

Jiu, Jinting ;

Ogata, Yukio ;

Isoda, Seiji .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (28) :13872-13880

[2] A numerical model for charge transport and recombination in dye-sensitized solar cells [J].

Anta, JA ;

Casanueva, F ;

Oskam, G .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (11) :5372-5378

[3] Dopant-concentration dependence of grain-boundary conductivity in ceria: A space-charge analysis [J].

Avila-Paredes, Hugo J. ;

Choi, Kwanghoon ;

Chen, Chien-Ting ;

Kim, Sangtae .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (27) :4837-4842

[4] Interfacial electron-transfer dynamics in Ru(tcterpy)(NCS)3-sensitized TiO2 nanocrystalline solar cells [J].

Bauer, C ;

Boschloo, G ;

Mukhtar, E ;

Hagfeldt, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (49) :12693-12704

[5]

Bisquert J, 2002, J PHYS CHEM B, V106, P325, DOI 10.1021/jp01194lg

[6] Chemical capacitance of nanostructured semiconductors: its origin and significance for nanocomposite solar cells [J].

Bisquert, J .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (24) :5360-5364

[7] Chemical diffusion coefficient of electrons in nanostructured semiconductor electrodes and dye-sensitized solar cells [J].

Bisquert, J .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (07) :2323-2332

[8] Three-channel transmission line impedance model for mesoscopic oxide electrodes functionalized with a conductive coating [J].

Bisquert, Juan ;

Graetzel, Michael ;

Wang, Qing ;

Fabregat-Santiago, Francisco .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (23) :11284-11290

[9] Sequential deposition as a route to high-performance perovskite-sensitized solar cells [J].

Burschka, Julian ;

Pellet, Norman ;

Moon, Soo-Jin ;

Humphry-Baker, Robin ;

Gao, Peng ;

Nazeeruddin, Mohammad K. ;

Graetzel, Michael .

NATURE, 2013, 499 (7458) :316-+

[10] Decoupling of transport, charge storage, and interfacial charge transfer in the nanocrystalline TiO2/electrolyte system by impedance methods [J].

Fabregat-Santiago, F ;

Garcia-Belmonte, G ;

Bisquert, J ;

Zaban, A ;

Salvador, P .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (02) :334-339

← 1 2 3 4 →