Cargando…
Three-dimensional graphene networks and RGO-based counter electrode for DSSCs
Graphene is considered to be a potential replacement for the traditional Pt counter electrode (CE) in dye-sensitized solar cells (DSSCs). Besides a high electron transport ability, a close contact between the CE and electrolyte is crucial to its outstanding catalytic activity for the I(3)(−)/I redox...
Autores principales: | , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2019
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064301/ https://www.ncbi.nlm.nih.gov/pubmed/35521385 http://dx.doi.org/10.1039/c9ra02792k |
_version_ | 1784699343386705920 |
---|---|
author | Tang, Bo Yu, Haogang Huang, Weiqiu Sun, Yunfei Li, Xufei Li, Sen Ma, Tingting |
author_facet | Tang, Bo Yu, Haogang Huang, Weiqiu Sun, Yunfei Li, Xufei Li, Sen Ma, Tingting |
author_sort | Tang, Bo |
collection | PubMed |
description | Graphene is considered to be a potential replacement for the traditional Pt counter electrode (CE) in dye-sensitized solar cells (DSSCs). Besides a high electron transport ability, a close contact between the CE and electrolyte is crucial to its outstanding catalytic activity for the I(3)(−)/I redox reaction. In this study, reduced graphene oxide (RGO) and three-dimensional graphene networks (3DGNs) were used to fabricate the CE, and the graphene-based CE endowed the resulting DSSC with excellent photovoltaic performance features. The high quality and continuous structure of the 3DGNs provided a channel amenable to fast transport of electrons, while the RGO afforded a close contact at the interface between the graphene basal plane and electrolyte. The obtained energy conversion efficiency (η) was closely related to the mass fraction and reduction degree of the RGO that was used. Corresponding optimization yielded, for the DSSCs based on the 3DGN–RGO CE, a value of η as high as 9.79%, comparable to that of the device using a Pt CE and hence implying promising prospects for the as-prepared CE. |
format | Online Article Text |
id | pubmed-9064301 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90643012022-05-04 Three-dimensional graphene networks and RGO-based counter electrode for DSSCs Tang, Bo Yu, Haogang Huang, Weiqiu Sun, Yunfei Li, Xufei Li, Sen Ma, Tingting RSC Adv Chemistry Graphene is considered to be a potential replacement for the traditional Pt counter electrode (CE) in dye-sensitized solar cells (DSSCs). Besides a high electron transport ability, a close contact between the CE and electrolyte is crucial to its outstanding catalytic activity for the I(3)(−)/I redox reaction. In this study, reduced graphene oxide (RGO) and three-dimensional graphene networks (3DGNs) were used to fabricate the CE, and the graphene-based CE endowed the resulting DSSC with excellent photovoltaic performance features. The high quality and continuous structure of the 3DGNs provided a channel amenable to fast transport of electrons, while the RGO afforded a close contact at the interface between the graphene basal plane and electrolyte. The obtained energy conversion efficiency (η) was closely related to the mass fraction and reduction degree of the RGO that was used. Corresponding optimization yielded, for the DSSCs based on the 3DGN–RGO CE, a value of η as high as 9.79%, comparable to that of the device using a Pt CE and hence implying promising prospects for the as-prepared CE. The Royal Society of Chemistry 2019-05-20 /pmc/articles/PMC9064301/ /pubmed/35521385 http://dx.doi.org/10.1039/c9ra02792k Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Tang, Bo Yu, Haogang Huang, Weiqiu Sun, Yunfei Li, Xufei Li, Sen Ma, Tingting Three-dimensional graphene networks and RGO-based counter electrode for DSSCs |
title | Three-dimensional graphene networks and RGO-based counter electrode for DSSCs |
title_full | Three-dimensional graphene networks and RGO-based counter electrode for DSSCs |
title_fullStr | Three-dimensional graphene networks and RGO-based counter electrode for DSSCs |
title_full_unstemmed | Three-dimensional graphene networks and RGO-based counter electrode for DSSCs |
title_short | Three-dimensional graphene networks and RGO-based counter electrode for DSSCs |
title_sort | three-dimensional graphene networks and rgo-based counter electrode for dsscs |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9064301/ https://www.ncbi.nlm.nih.gov/pubmed/35521385 http://dx.doi.org/10.1039/c9ra02792k |
work_keys_str_mv | AT tangbo threedimensionalgraphenenetworksandrgobasedcounterelectrodefordsscs AT yuhaogang threedimensionalgraphenenetworksandrgobasedcounterelectrodefordsscs AT huangweiqiu threedimensionalgraphenenetworksandrgobasedcounterelectrodefordsscs AT sunyunfei threedimensionalgraphenenetworksandrgobasedcounterelectrodefordsscs AT lixufei threedimensionalgraphenenetworksandrgobasedcounterelectrodefordsscs AT lisen threedimensionalgraphenenetworksandrgobasedcounterelectrodefordsscs AT matingting threedimensionalgraphenenetworksandrgobasedcounterelectrodefordsscs |