Layer-by-Layer Formation of Block-Copolymer-Derived TiO2 for Solid-State Dye-Sensitized Solar Cells

Handle URI:
http://hdl.handle.net/10754/598707
Title:
Layer-by-Layer Formation of Block-Copolymer-Derived TiO2 for Solid-State Dye-Sensitized Solar Cells
Authors:
Guldin, Stefan; Docampo, Pablo; Stefik, Morgan; Kamita, Gen; Wiesner, Ulrich; Snaith, Henry J.; Steiner, Ullrich
Abstract:
Morphology control on the 10 nm length scale in mesoporous TiO 2 films is crucial for the manufacture of high-performance dye-sensitized solar cells. While the combination of block-copolymer self-assembly with sol-gel chemistry yields good results for very thin films, the shrinkage during the film manufacture typically prevents the build-up of sufficiently thick layers to enable optimum solar cell operation. Here, a study on the temporal evolution of block-copolymer-directed mesoporous TiO 2 films during annealing and calcination is presented. The in-situ investigation of the shrinkage process enables the establishment of a simple and fast protocol for the fabrication of thicker films. When used as photoanodes in solid-state dye-sensitized solar cells, the mesoporous networks exhibit significantly enhanced transport and collection rates compared to the state-of-the-art nanoparticle-based devices. As a consequence of the increased film thickness, power conversion efficiencies above 4% are reached. Fabrication of sufficiently thick mesoporous TiO 2 photoelectrodes with morphology control on the 10 nm length scale is essential for solid-state dye-sensitized solar cells (ss-DSC). This study of the temporal evolution of block-copolymer-directed mesoporous TiO 2 films during annealing and calcination enables the build-up of sufficiently thick films for high-performance ssDSC devices. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Citation:
Guldin S, Docampo P, Stefik M, Kamita G, Wiesner U, et al. (2011) Layer-by-Layer Formation of Block-Copolymer-Derived TiO2 for Solid-State Dye-Sensitized Solar Cells. Small 8: 432–440. Available: http://dx.doi.org/10.1002/smll.201102063.
Publisher:
Wiley-Blackwell
Journal:
Small
KAUST Grant Number:
KUS-C1-018-02
Issue Date:
15-Dec-2011
DOI:
10.1002/smll.201102063
PubMed ID:
22174177
Type:
Article
ISSN:
1613-6810
Sponsors:
The authors acknowledge Dr. M. Kolle for help with graphics design and Prof. D. Eder for useful discussions. This publication is based on work supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST), the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 246124, the EPSRC (EP/F056702/1 and EP/F065884/1), the Department of Energy (DE-FG02 87ER45298) through the Cornell Fuel Cell Institute (CFCI), and the National Science Foundation (DMR-1104773). M. S. was supported by the Cornell Fuel Cell Institute and the Energy Materials Center at Cornell (EMC2), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001086.
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Full metadata record

DC FieldValue Language
dc.contributor.authorGuldin, Stefanen
dc.contributor.authorDocampo, Pabloen
dc.contributor.authorStefik, Morganen
dc.contributor.authorKamita, Genen
dc.contributor.authorWiesner, Ulrichen
dc.contributor.authorSnaith, Henry J.en
dc.contributor.authorSteiner, Ullrichen
dc.date.accessioned2016-02-25T13:34:48Zen
dc.date.available2016-02-25T13:34:48Zen
dc.date.issued2011-12-15en
dc.identifier.citationGuldin S, Docampo P, Stefik M, Kamita G, Wiesner U, et al. (2011) Layer-by-Layer Formation of Block-Copolymer-Derived TiO2 for Solid-State Dye-Sensitized Solar Cells. Small 8: 432–440. Available: http://dx.doi.org/10.1002/smll.201102063.en
dc.identifier.issn1613-6810en
dc.identifier.pmid22174177en
dc.identifier.doi10.1002/smll.201102063en
dc.identifier.urihttp://hdl.handle.net/10754/598707en
dc.description.abstractMorphology control on the 10 nm length scale in mesoporous TiO 2 films is crucial for the manufacture of high-performance dye-sensitized solar cells. While the combination of block-copolymer self-assembly with sol-gel chemistry yields good results for very thin films, the shrinkage during the film manufacture typically prevents the build-up of sufficiently thick layers to enable optimum solar cell operation. Here, a study on the temporal evolution of block-copolymer-directed mesoporous TiO 2 films during annealing and calcination is presented. The in-situ investigation of the shrinkage process enables the establishment of a simple and fast protocol for the fabrication of thicker films. When used as photoanodes in solid-state dye-sensitized solar cells, the mesoporous networks exhibit significantly enhanced transport and collection rates compared to the state-of-the-art nanoparticle-based devices. As a consequence of the increased film thickness, power conversion efficiencies above 4% are reached. Fabrication of sufficiently thick mesoporous TiO 2 photoelectrodes with morphology control on the 10 nm length scale is essential for solid-state dye-sensitized solar cells (ss-DSC). This study of the temporal evolution of block-copolymer-directed mesoporous TiO 2 films during annealing and calcination enables the build-up of sufficiently thick films for high-performance ssDSC devices. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.en
dc.description.sponsorshipThe authors acknowledge Dr. M. Kolle for help with graphics design and Prof. D. Eder for useful discussions. This publication is based on work supported in part by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST), the European Community's Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 246124, the EPSRC (EP/F056702/1 and EP/F065884/1), the Department of Energy (DE-FG02 87ER45298) through the Cornell Fuel Cell Institute (CFCI), and the National Science Foundation (DMR-1104773). M. S. was supported by the Cornell Fuel Cell Institute and the Energy Materials Center at Cornell (EMC2), an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001086.en
dc.publisherWiley-Blackwellen
dc.subjectblock copolymersen
dc.subjectdye-sensitized solar cellsen
dc.subjectself-assemblyen
dc.subjectsol-gelen
dc.subjectTiO 2en
dc.titleLayer-by-Layer Formation of Block-Copolymer-Derived TiO2 for Solid-State Dye-Sensitized Solar Cellsen
dc.typeArticleen
dc.identifier.journalSmallen
dc.contributor.institutionUniversity of Cambridge, Cambridge, United Kingdomen
dc.contributor.institutionUniversity of Oxford, Oxford, United Kingdomen
dc.contributor.institutionCornell University, Ithaca, United Statesen
dc.contributor.institutionEcole Polytechnique Federale de Lausanne, Lausanne, Switzerlanden
kaust.grant.numberKUS-C1-018-02en

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