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Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor
Quantum dot solar cells (QDSCs) with hexagonal fullerene nanosheets (C(60)-NS) embedded in a titanium oxide/cadmium sulfide (TiO(2)/CdS) photoanode coupled with a carbon-cloth (C-cloth) coated with molybdenum sulfide (MoS(2)) counter electrode (CE) are studied for the first time. C(60)-NS due to a f...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9087210/ https://www.ncbi.nlm.nih.gov/pubmed/35547027 http://dx.doi.org/10.1039/c8ra04956d |
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author | Das, Aparajita Deepa, Melepurath Ghosal, Partha |
author_facet | Das, Aparajita Deepa, Melepurath Ghosal, Partha |
author_sort | Das, Aparajita |
collection | PubMed |
description | Quantum dot solar cells (QDSCs) with hexagonal fullerene nanosheets (C(60)-NS) embedded in a titanium oxide/cadmium sulfide (TiO(2)/CdS) photoanode coupled with a carbon-cloth (C-cloth) coated with molybdenum sulfide (MoS(2)) counter electrode (CE) are studied for the first time. C(60)-NS due to a favorable work function of 4.57 eV and a conductance of 1.44 μS, enable faster electron injection from the conduction band of cadmium sulfide to the current collector, in contrast to the bulk fullerene based TiO(2)/CdS solar cell. The champion cell with the TiO(2)/C(60)-NS/CdS photoanode and a MoS(2)/C-cloth CE exhibits a high power conversion efficiency of 5.6%, greater by ∼14% relative to its' analogue cell with bulk fullerene. A large area cell of 1 cm(2) dimensions with TiO(2)/C(60)-NS/CdS gives a PCE of 2.9%. The effect of MoS(2) in improving the efficiency of the cell with a TiO(2)/C(60)-NS/CdS photoanode is realized in terms of enhanced electrocatalytic activity for polysulfide reduction, and lower charge transfer resistance at the polysulfide/CE interface compared to a cell with the same photoanode but having pristine carbon-cloth as the CE. The ability of MoS(2) for catalyzing the oxidized polysulfide species at the CE and C(60)-NS for improving the charge collection at the photoanode serve as indicators for their wider utilization in solar cells. It also serves as a good supercapacitor material. A MoS(2)/C-cloth based symmetric cell exhibits a specific capacitance of 645 F g(−1) at 2 A g(−1), which shows its' potential for energy storage as well. By integrating the QDSC and the supercapacitor, the resulting integrated device acquires a photovoltage of 0.7 V, under 1 sun illumination. |
format | Online Article Text |
id | pubmed-9087210 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90872102022-05-10 Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor Das, Aparajita Deepa, Melepurath Ghosal, Partha RSC Adv Chemistry Quantum dot solar cells (QDSCs) with hexagonal fullerene nanosheets (C(60)-NS) embedded in a titanium oxide/cadmium sulfide (TiO(2)/CdS) photoanode coupled with a carbon-cloth (C-cloth) coated with molybdenum sulfide (MoS(2)) counter electrode (CE) are studied for the first time. C(60)-NS due to a favorable work function of 4.57 eV and a conductance of 1.44 μS, enable faster electron injection from the conduction band of cadmium sulfide to the current collector, in contrast to the bulk fullerene based TiO(2)/CdS solar cell. The champion cell with the TiO(2)/C(60)-NS/CdS photoanode and a MoS(2)/C-cloth CE exhibits a high power conversion efficiency of 5.6%, greater by ∼14% relative to its' analogue cell with bulk fullerene. A large area cell of 1 cm(2) dimensions with TiO(2)/C(60)-NS/CdS gives a PCE of 2.9%. The effect of MoS(2) in improving the efficiency of the cell with a TiO(2)/C(60)-NS/CdS photoanode is realized in terms of enhanced electrocatalytic activity for polysulfide reduction, and lower charge transfer resistance at the polysulfide/CE interface compared to a cell with the same photoanode but having pristine carbon-cloth as the CE. The ability of MoS(2) for catalyzing the oxidized polysulfide species at the CE and C(60)-NS for improving the charge collection at the photoanode serve as indicators for their wider utilization in solar cells. It also serves as a good supercapacitor material. A MoS(2)/C-cloth based symmetric cell exhibits a specific capacitance of 645 F g(−1) at 2 A g(−1), which shows its' potential for energy storage as well. By integrating the QDSC and the supercapacitor, the resulting integrated device acquires a photovoltage of 0.7 V, under 1 sun illumination. The Royal Society of Chemistry 2018-10-12 /pmc/articles/PMC9087210/ /pubmed/35547027 http://dx.doi.org/10.1039/c8ra04956d Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Das, Aparajita Deepa, Melepurath Ghosal, Partha Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor |
title | Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor |
title_full | Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor |
title_fullStr | Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor |
title_full_unstemmed | Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor |
title_short | Dual function of molybdenum sulfide/C-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor |
title_sort | dual function of molybdenum sulfide/c-cloth in enhancing the performance of fullerene nanosheets based solar cell and supercapacitor |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9087210/ https://www.ncbi.nlm.nih.gov/pubmed/35547027 http://dx.doi.org/10.1039/c8ra04956d |
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