Docampo, P. , Stefik, M., Guldin, S., Gunning, R., Yufa, N. A., Cai, N., Wang, P., Steiner, U., Wiesner, U. and Snaith, H. J. (2012) Triblock-terpolymer-directed self-assembly of mesoporous TiO2: high-performance photoanodes for solid-state dye-sensitized solar cells. Advanced Energy Materials, 2(6), pp. 676-682. (doi: 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%.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Docampo, Dr Pablo |
| Authors: | Docampo, P., Stefik, M., Guldin, S., Gunning, R., Yufa, N. A., Cai, N., Wang, P., Steiner, U., Wiesner, U., and Snaith, H. J. |
| College/School: | College of Science and Engineering > School of Chemistry |
| Journal Name: | Advanced Energy Materials |
| Publisher: | Wiley |
| ISSN: | 1614-6832 |
| ISSN (Online): | 1614-6840 |
| Published Online: | 30 April 2012 |
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