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https://hdl.handle.net/1822/64422
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Campo DC | Valor | Idioma |
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dc.contributor.author | Hora, Carolina | por |
dc.contributor.author | Santos, Fátima | por |
dc.contributor.author | Sales, M. G. F. | por |
dc.contributor.author | Ivanou, Dzmitry | por |
dc.contributor.author | Mendes, Adélio | por |
dc.date.accessioned | 2020-03-16T11:59:10Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Hora, Carolina; Santos, Fátima; Sales, M. G. F.; Ivanou, Dzmitry; Mendes, Adélio, Dye-sensitized solar cells for efficient solar and artificial light conversion. ACS Sustainable Chemistry & Engineering, 7(15), 13464-13470, 2019 | por |
dc.identifier.uri | https://hdl.handle.net/1822/64422 | - |
dc.description.abstract | Progress in dye-sensitized solar cells (DSSCs) has been benchmarked with N719 dye-based devices. However, power conversion efficiency (PCE) improvements performed in low-energy-performing devices cannot be extrapolated to high-performing ones. This points to the need for using a high PCE reference DSSC device, which preferably should be possible for preparation using readily available commercial reactants and parts. This study reports an optimized DSSC prepared with commercial reactants, displaying a PCE of up to 9.84% under simulated solar light and of 28.7% under artificial room light. The efficient light harvesting in the photoanode and electron recombination suppression in the photoanode/electrolyte interface were systematically optimized; the thickness and light-scattering ability of the photoanode mesoporous layers were tuned to maximize light harvesting and minimize the recombination losses. Electron back recombination with electrolyte was minimized using a TiO2 blocking layer and treating the mesoporous layer of TiO2 with TiCl4. Finally, despite the use of a light-scattering TiO2 coating over the mesoporous layer, the use of a light reflection layer applied to the back of the devices proved to improve the PCE further. | por |
dc.description.sponsorship | This article was presented at the 13th International Chemical and Biological Engineering Conference (CHEMPOR 2018). The authors acknowledge the Scientific and Organizing Committees of the Conference for the opportunity to present this work. The authors acknowledge the financial support of the European Research Council through the Advanced Research Grant, GA no. 321315, the SunStorage project funded by the European Regional Development Fund (ERDF) through COMPETE2020, and the projects POCI-01-0145-FEDER-006939, NORTE-01-0145-FEDER-000005, and LEPABE-2-ECO-INNOVATION all funded by FEDER funds through COMPETE2020. C.S.H. and F.S. acknowledge the FCT for their Ph.D. grants SFRH/BD/129761/2017 and SFRH/BD/132388/2017, respectively. | por |
dc.language.iso | eng | por |
dc.publisher | ACS | por |
dc.relation | SFRH/BD/129761/2017 | por |
dc.relation | FRH/BD/132388/2017 | por |
dc.rights | restrictedAccess | por |
dc.subject | Photonics | por |
dc.subject | Oxides | por |
dc.subject | Power conversion efficiency | por |
dc.subject | Layers | por |
dc.subject | Light | por |
dc.title | Dye-sensitized solar cells for efficient solar and artificial light conversion | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://pubs.acs.org/journal/ascecg | por |
dc.comments | CEB53566 | por |
dc.date.updated | 2020-03-09T09:35:10Z | - |
dc.identifier.eissn | 2168-0485 | por |
dc.identifier.doi | 10.1021/acssuschemeng.9b02990 | por |
dc.date.embargo | 10000-01-01 | - |
dc.description.publicationversion | info:eu-repo/semantics/publishedVersion | - |
sdum.journal | ACS Sustainable Chemistry & Engineering | por |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
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document_53566_1.pdf Acesso restrito! | 1,18 MB | Adobe PDF | Ver/Abrir |