Docampo, P;
Stefik, M;
Guldin, S;
Gunning, R;
Yufa, NA;
Cai, N;
Wang, P;
... Snaith, HJ; + view all
(2012)
Triblock-Terpolymer-Directed Self-Assembly of Mesoporous TiO2: High-Performance Photoanodes for Solid-State Dye-Sensitized Solar Cells.
Advanced Energy Materials
, 2
, Article 6. 10.1002/aenm.201100699.
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Abstract
A new self-assembly platform for the fast and straightforward synthesis of bicontinuous, mesoporous TiO2 films is presented, based on the triblock terpolymer poly(isoprene-b-styrene-b-ethylene oxide). This new materials route allows the co-assembly of the metal oxide as a fully interconnected minority phase, which results in a highly porous photoanode with strong advantages over the state-of-the-art nanoparticle-based photoanodes employed in solid-state dye-sensitized solar cells. Devices fabricated through this triblock terpolymer route exhibit a high availability of sub-bandgap states distributed in a narrow and low enough energy band, which maximizes photoinduced charge generation from a state-of-the-art organic dye, C220. As a consequence, the co-assembled mesoporous metal oxide system outperformed the conventional nanoparticle-based electrodes fabricated and tested under the same conditions, exhibiting solar power-conversion efficiencies of over 5%.
| Type: | Article |
|---|---|
| Title: | Triblock-Terpolymer-Directed Self-Assembly of Mesoporous TiO2: High-Performance Photoanodes for Solid-State Dye-Sensitized Solar Cells |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/aenm.201100699 |
| Publisher version: | http://dx.doi.org/10.1002/aenm.201100699 |
| Language: | English |
| Additional information: | 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 of the SANS project, 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 US Department of Energy, Office of Science, Office of Basic Energy Sciences under Award No. DE-SC0001086. N.C. and P. W. acknowledge the the National 973 Program (No. 2011CBA00702) for financial support. This is the peer reviewed version of the following article: Docampo, P et al (2012) Triblock-Terpolymer-Directed Self-Assembly of Mesoporous TiO2: High-Performance Photoanodes for Solid-State Dye-Sensitized Solar Cells. Advanced Energy Materials , 2 , Article 6., which has been published in final form at 10.1002/aenm.201100699. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for self-archiving |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1446960 |
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