Atomic Layer Deposition of TiO2 on Mesoporous nanolTO: Conductive Core-Shell Photoanodes for Dye-Sensitized Solar Cells

被引：70

作者：

Alibabaei, Leila ^{[1
]}

Farnum, Byron H. ^{[1
]}

Kalanyan, Berc ^{[2
]}

Brennaman, M. Kyle ^{[1
]}

Losego, Mark D. ^{[2
]}

Parsons, Gregory N. ^{[2
]}

Meyer, Thomas J. ^{[1
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

[2] N Carolina State Univ, Dept Chem & Biomol Engn, Raleigh, NC 27695 USA

来源：

NANO LETTERS | 2014年 / 14卷 / 06期

基金：

美国国家科学基金会;

关键词：

Dye-sensitized solar cells; core-shell structure; atomic layer deposition; tin-doped indium oxide; TiO2; CHARGE-TRANSFER; NANOCRYSTALLINE SEMICONDUCTORS; ELECTRON-TRANSFER; TITANIUM-DIOXIDE; BLOCKING LAYERS; TIN OXIDE; MECHANISM; LIGHT; RECOMBINATION; PERFORMANCE;

D O I：

10.1021/nl5006433

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Core-shell structures consisting of thin shells of conformal TiO2 deposited on high surface area, conductive Sn-doped In2O3 nanoparticle. Mesoscopic films were synthesized by atomic layer deposition and studied for application in dye-sensitized solar cells. Results obtained with the N719 dye show that short-circuit current densities, open-circuit voltages, and back electron transfer lifetimes all increased with increasing TiO2 shell thickness up to 1.8-2.4 nm and then decline as the thickness was increased further. At higher shell thicknesses, back electron transfer to Rum is increasingly competitive with transport to the nanoITO core resulting in decreased device efficiencies.

引用

页码：3255 / 3261

页数：7

共 44 条

[1] Solar water splitting in a molecular photoelectrochemical cell [J].

Alibabaei, Leila ;

Brennaman, M. Kyle ;

Norris, Michael R. ;

Kalanyan, Berc ;

Song, Wenjing ;

Losego, Mark D. ;

Concepcion, Javier J. ;

Binstead, Robert A. ;

Parsons, Gregory N. ;

Meyer, Thomas J. .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2013, 110 (50) :20008-20013

[2] Photodriven heterogeneous charge transfer with transition-metal compounds anchored to TiO2 semiconductor surfaces [J].

Ardo, Shane ;

Meyer, Gerald J. .

CHEMICAL SOCIETY REVIEWS, 2009, 38 (01) :115-164

[3] Mechanism of charge recombination in dye-sensitized nanocrystalline semiconductors: Random flight model [J].

Barzykin, AV ;

Tachiya, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (17) :4356-4363

[4] Electrochromic devices based on wide band-gap nanocrystalline semiconductors functionalized with mononuclear charge transfer compounds [J].

Biancardo, M ;

Argazzi, R ;

Bignozzi, CA .

DISPLAYS, 2006, 27 (01) :19-23

[5] 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 [J].

Bisquert, J ;

Zaban, A ;

Greenshtein, M ;

Mora-Seró, I .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (41) :13550-13559

[6] How important is the back reaction of electrons via the substrate in dye-sensitized nanocrystalline solar cells? [J].

Cameron, PJ ;

Peter, LM ;

Hore, S .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (02) :930-936

[7] Characterization of titanium dioxide blocking layers in dye-sensitized nanocrystalline solar cells [J].

Cameron, PJ ;

Peter, LM .

JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (51) :14394-14400

[8] Low-Temperature Crystalline Titanium Dioxide by Atomic Layer Deposition for Dye-Sensitized Solar Cells [J].

Chandiran, Aravind Kumar ;

Yella, Aswani ;

Stefik, Morgan ;

Heiniger, Leo-Philipp ;

Comte, Pascal ;

Nazeeruddin, Mohammad. K. ;

Graetzel, Michael .

ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (08) :3487-3493

[9] TiO2-coated nanoporous SnO2 electrodes for dye-sensitized solar cells [J].

Chappel, S ;

Chen, SG ;

Zaban, A .

LANGMUIR, 2002, 18 (08) :3336-3342

[10] INTRAMOLECULAR LONG-DISTANCE ELECTRON-TRANSFER IN ORGANIC-MOLECULES [J].

CLOSS, GL ;

MILLER, JR .

SCIENCE, 1988, 240 (4851) :440-447

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