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Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells

A series of carbon nanohorns (CNHs) constituted by the aggregation of about 2000 individual conical graphene tubes (diameters from 2 nm to 5 nm and a length of 40–50 nm) that have been modified with dyes of two, three, or four terthienyl groups has been prepared by adsorbing the corresponding dye on...

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Autores principales: Iglesias, Daniel, Atienzar, Pedro, Vázquez, Ester, Herrero, María Antonia, García, Hermenegildo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666459/
https://www.ncbi.nlm.nih.gov/pubmed/28946677
http://dx.doi.org/10.3390/nano7100294
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author Iglesias, Daniel
Atienzar, Pedro
Vázquez, Ester
Herrero, María Antonia
García, Hermenegildo
author_facet Iglesias, Daniel
Atienzar, Pedro
Vázquez, Ester
Herrero, María Antonia
García, Hermenegildo
author_sort Iglesias, Daniel
collection PubMed
description A series of carbon nanohorns (CNHs) constituted by the aggregation of about 2000 individual conical graphene tubes (diameters from 2 nm to 5 nm and a length of 40–50 nm) that have been modified with dyes of two, three, or four terthienyl groups has been prepared by adsorbing the corresponding dye on the CNH. Persistent inks in o-dichlorobenzene (o-DCB) of these dye-CNH conjugates were obtained by laser irradiation of o-DCB suspensions of the dye-CNH solids. These inks were used in combination or not with N719 dye for the preparation of dye-sensitized solar cells (DSSC) of TiO(2). It was measured that the terthienyl dye with the largest conjugation deposited on the CNH additively increased the performance of an analogous TiO(2) cell from an efficiency of 4.07% to 6.24%. This result shows the potential of dye-modified CNHs as additives in the construction of more efficient DSSCs.
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spelling pubmed-56664592017-11-09 Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells Iglesias, Daniel Atienzar, Pedro Vázquez, Ester Herrero, María Antonia García, Hermenegildo Nanomaterials (Basel) Article A series of carbon nanohorns (CNHs) constituted by the aggregation of about 2000 individual conical graphene tubes (diameters from 2 nm to 5 nm and a length of 40–50 nm) that have been modified with dyes of two, three, or four terthienyl groups has been prepared by adsorbing the corresponding dye on the CNH. Persistent inks in o-dichlorobenzene (o-DCB) of these dye-CNH conjugates were obtained by laser irradiation of o-DCB suspensions of the dye-CNH solids. These inks were used in combination or not with N719 dye for the preparation of dye-sensitized solar cells (DSSC) of TiO(2). It was measured that the terthienyl dye with the largest conjugation deposited on the CNH additively increased the performance of an analogous TiO(2) cell from an efficiency of 4.07% to 6.24%. This result shows the potential of dye-modified CNHs as additives in the construction of more efficient DSSCs. MDPI 2017-09-25 /pmc/articles/PMC5666459/ /pubmed/28946677 http://dx.doi.org/10.3390/nano7100294 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Iglesias, Daniel
Atienzar, Pedro
Vázquez, Ester
Herrero, María Antonia
García, Hermenegildo
Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells
title Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells
title_full Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells
title_fullStr Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells
title_full_unstemmed Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells
title_short Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells
title_sort carbon nanohorns modified with conjugated terthienyl/terthiophene structures: additives to enhance the performance of dye-sensitized solar cells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5666459/
https://www.ncbi.nlm.nih.gov/pubmed/28946677
http://dx.doi.org/10.3390/nano7100294
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