Surface properties of SnO2 nanowires for enhanced performance with dye-sensitized solar cells

被引：127

作者：

Gubbala, Suresh ^{[1
]}

Russell, Harry B. ^{[1
]}

Shah, Hemant ^{[2
]}

Deb, Biswapriya ^{[4
]}

Jasinski, Jacek ^{[4
]}

Rypkema, Heather ^{[3
]}

Sunkara, Mahendra K. ^{[1
]}

机构：

[1] Univ Louisville, Dept Chem Engn, Louisville, KY 40292 USA

[2] Univ Louisville, Dept Elect & Comp Engn, Louisville, KY 40292 USA

[3] Univ Louisville, Dept Chem, Louisville, KY 40292 USA

[4] Univ Louisville, Inst Adv Mat & Renewable Energy, Louisville, KY 40292 USA

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2009年 / 2卷 / 12期

关键词：

ELECTRON-TRANSPORT; FILMS; PHOTOEMISSION;

D O I：

10.1039/b910174h

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

Our recent studies showed that nanowire based DSSCs exhibited over 250 mV higher open circuit potentials (V-OC) compared to those using nanoparticles. In this study, the electron transport and surface properties of nanowires and nanoparticles are investigated to understand the reasons for the observed higher photovoltages with NW based solar cells. It was seen that, in addition to slow recombination kinetics, the lower work function of SnO2 nanowires compared to the nanoparticle counterparts also significantly contributes to the high V-OC observed for the nanowire based DSSCs.

引用

页码：1302 / 1309

页数：8

共 24 条

[1]

Interparticle charge transfer in dye-sensitized films composed of two kinds of semiconductor crystallites [J].

Bandara, J ;

Tennakone, K .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2001, 236 (02) :375-378

[2]

PREPARATION AND PHOTOELECTROCHEMICAL CHARACTERIZATION OF THIN SNO(2) NANOCRYSTALLINE SEMICONDUCTOR-FILMS AND THEIR SENSITIZATION WITH BIS(2,2'-BIPYRIDINE)(2,2'-BIPYRIDINE-4,4'-DICARBOXYLIC ACID)RUTHENIUM(II) COMPLEX [J].

BEDJA, I ;

HOTCHANDANI, S ;

KAMAT, PV .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (15) :4133-4140

[3]

Nanoporous SnO2 electrodes for dye-sensitized solar cells:: improved cell performance by the synthesis of 18 nm SnO2 colloids [J].

Chappel, S ;

Zaban, A .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2002, 71 (02) :141-152

[4]

Photoelectrochemical solar cells based on Sno2 nanocrystalline films [J].

Dinh, Nguyen Nang ;

Bernard, Marie-Claude ;

Hugot-Le Goff, Anne ;

Stergiopoulos, Thomas ;

Falaras, Polycarpos .

COMPTES RENDUS CHIMIE, 2006, 9 (5-6) :676-683

[5]

Highly efficient dye-sensitized SnO2 solar cells having sufficient electron diffusion length [J].

Fukai, Yosuke ;

Kondo, Yusuke ;

Mori, Shogo ;

Suzuki, Eiji .

ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (07) :1439-1443

[6]

Fast electron transport in metal organic vapor deposition grown dye-sensitized ZnO nanorod solar cells [J].

Galoppini, Elena ;

Rochford, Jonathan ;

Chen, Hanhong ;

Saraf, Gaurav ;

Lu, Yicheng ;

Hagfeldt, Anders ;

Boschloo, Gerrit .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (33) :16159-16161

[7]

GUBBALA S, 2008, ADV FUNCT MATER, V18, P1

[8]

Rapid thermal annealing effects on tin oxide nanowires prepared by vapor-liquid-solid technique [J].

Kar, Ayan ;

Yang, Jianyong ;

Dutta, Mitra ;

Stroscio, Michael A. ;

Kumari, Jyoti ;

Meyyappan, M. .

NANOTECHNOLOGY, 2009, 20 (06)

[9]

Dye-sensitized core-shell nanocrystals:: Improved efficiency of mesoporous tin oxide electrodes coated with a thin layer of an insulating oxide [J].

Kay, A ;

Grätzel, M .

CHEMISTRY OF MATERIALS, 2002, 14 (07) :2930-2935

[10]

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

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