dc.contributor.author | Buene, Audun Formo | |
dc.contributor.author | Almenningen, David Moe | |
dc.contributor.author | Hagfeldt, Anders | |
dc.contributor.author | Gautun, Odd Reidar | |
dc.contributor.author | Hoff, Bård Helge | |
dc.date.accessioned | 2020-05-13T12:19:44Z | |
dc.date.available | 2020-05-13T12:19:44Z | |
dc.date.created | 2020-05-12T10:39:52Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Solar RRL. 2020, 4 (4), 1900569-?. | en_US |
dc.identifier.issn | 2367-198X | |
dc.identifier.uri | https://hdl.handle.net/11250/2654267 | |
dc.description.abstract | Chenodeoxycholic acid (CDCA) is the most used anti-aggregation additive in dye-sensitized solar cells since its introduction to the field in 1993. However, effective suppression of dye aggregation comes at the cost of reduced dye loading, lower open-circuit voltage and limited control of dye/additive distribution when co-sensitizing with free CDCA. To combat this, we report herein a novel dye design concept which employs the covalent attachment of a CDCA moiety to triarylamine sensitizers. The CDCA substituents do not affect the photophysical nor electrochemical properties of the sensitizers, but have a positive effect on the photovoltaic performance with [Cu+/2+(tmby)2](TFSI)1/2 electrolyte. By ensuring a one-to-one ratio of dye and CDCA, paired with isotropic distributions of each component, this approach results in a higher-quality dye monolayer. Compared to the reference system, the novel approach reported here gives higher open-circuit voltage and power-conversion efficiency (PCE). The best device is fabricated with the dye C6-CDCA delivering a PCE of 6.84% (8 µm TiO2, 1 mM CDCA, JSC = 8.64 mA cm-2, VOC = 1007 mV, FF = 0.77). | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Wiley | en_US |
dc.rights | Navngivelse-Ikkekommersiell 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/deed.no | * |
dc.title | First Report of Chenodeoxycholic Acid–Substituted Dyes Improving the Dye Monolayer Quality in Dye-Sensitized Solar Cells | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 1900569-? | en_US |
dc.source.volume | 4 | en_US |
dc.source.journal | Solar RRL | en_US |
dc.source.issue | 4 | en_US |
dc.identifier.doi | 10.1002/solr.201900569 | |
dc.identifier.cristin | 1810469 | |
dc.relation.project | Norges teknisk-naturvitenskapelige universitet: No code | en_US |
dc.description.localcode | © 2020 The Authors. Published by WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim This is an open access article under the terms of the Creative Commons Attribution‐NonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes. | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.fulltext | original | |