Block copolymer directed synthesis of mesoporous TiO2 for dye-sensitized solar cells
- Title
- Block copolymer directed synthesis of mesoporous TiO2 for dye-sensitized solar cells
- Authors
- Nedelcu, Mihaela; Lee, Jinwoo; Crossland, Edward J. W.; Warren, Scott C.; Orilall, M. Christopher; G; null
- Date Issued
- 2009-01
- Publisher
- ROYAL SOC CHEMISTRY
- Abstract
- The morphology of TiO2 plays an important role in the operation of solid-state dye-sensitized solar cells. By using polyisoprene-block-ethyleneoxide (PI-b-PEO) copolymers as structure directing agents for a sol-gel based synthesis of mesoporous TiO2, we demonstrate a strategy for the detailed control of the semiconductor morphology on the 10 nm length scale. The careful adjustment of polymer molecular weight and titania precursor content is used to systematically vary the material structure and its influence upon solar cell performance is investigated. Furthermore, the use of a partially sp(2) hybridized structure directing polymer enables the crystallization of porous TiO2 networks at high temperatures without pore collapse, improving its performance in solid-state dye-sensitized solar cells.
- Keywords
- HOLE TRANSPORT; METAL-OXIDES; FILMS; EFFICIENCY; ELECTRON; POLYMERS; TITANIA
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29172
- DOI
- 10.1039/B815166K
- ISSN
- 1744-683X
- Article Type
- Article
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.