Please use this identifier to cite or link to this item:
https://doi.org/10.1039/c0ee00519c
DC Field | Value | |
---|---|---|
dc.title | An organic redox mediator for dye-sensitized solar cells with near unity quantum efficiency | |
dc.contributor.author | Liu, Y. | |
dc.contributor.author | Jennings, J.R. | |
dc.contributor.author | Parameswaran, M. | |
dc.contributor.author | Wang, Q. | |
dc.date.accessioned | 2014-10-07T09:47:46Z | |
dc.date.available | 2014-10-07T09:47:46Z | |
dc.date.issued | 2011-02 | |
dc.identifier.citation | Liu, Y., Jennings, J.R., Parameswaran, M., Wang, Q. (2011-02). An organic redox mediator for dye-sensitized solar cells with near unity quantum efficiency. Energy and Environmental Science 4 (2) : 564-571. ScholarBank@NUS Repository. https://doi.org/10.1039/c0ee00519c | |
dc.identifier.issn | 17545692 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/86188 | |
dc.description.abstract | The organic redox mediator tetramethylformaminium disulfide/ tetramethylthiourea was evaluated in dye-sensitized nanocrystalline TiO 2 solar cells, as an alternative to the conventional I 3 -/I- redox couple. Devices were optimized by judicious variation of electrolyte composition and selection of sensitizing dye. The best performance of the dye-sensitized solar cells incorporating this redox mediator was achieved by using a metal-free indoline-based sensitizer (D131). It was found that conventional ruthenium based sensitizers (e.g. Z907) exhibited inferior performance, possibly as a result of an insufficient driving force for sensitizer regeneration. A near unity incident photon-to-collected-electron conversion efficiency was achieved at low light intensity for optimized devices. The overall light-to-electric power conversion efficiency under AM 1.5 1 Sun illumination reached 3.88%. This represents an increase of ca. 25% compared with previously reported DSCs using this redox mediator. Factors limiting cell performance were further investigated using transient absorption spectroscopy and electrochemical impedance spectroscopy. © 2011 The Royal Society of Chemistry. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1039/c0ee00519c | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | MATERIALS SCIENCE AND ENGINEERING | |
dc.description.doi | 10.1039/c0ee00519c | |
dc.description.sourcetitle | Energy and Environmental Science | |
dc.description.volume | 4 | |
dc.description.issue | 2 | |
dc.description.page | 564-571 | |
dc.identifier.isiut | 000286891500034 | |
Appears in Collections: | Staff Publications |
Show simple item record
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.