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Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination
Copper indium sulfide quantum dots (CuInS(2) QDs) were incorporated into a nanocrystalline TiO(2) film by using spin coating-assisted successive ionic layer adsorption and reaction process to fabricate CuInS(2) QD-sensitized TiO(2) photoelectrodes for the solid-state quantum dot-sensitized solar cel...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6554371/ https://www.ncbi.nlm.nih.gov/pubmed/31172299 http://dx.doi.org/10.1186/s11671-019-2998-7 |
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author | Fu, Bowen Deng, Chong Yang, Lin |
author_facet | Fu, Bowen Deng, Chong Yang, Lin |
author_sort | Fu, Bowen |
collection | PubMed |
description | Copper indium sulfide quantum dots (CuInS(2) QDs) were incorporated into a nanocrystalline TiO(2) film by using spin coating-assisted successive ionic layer adsorption and reaction process to fabricate CuInS(2) QD-sensitized TiO(2) photoelectrodes for the solid-state quantum dot-sensitized solar cell (QDSSC) applications. The result shows that the photovoltaic performance of solar cell is extremely dependent on the number of cycles, which has an appreciable impact on the coverage ratio of CuInS(2) on the surface of TiO(2) and the density of surface defect states. In the following high-temperature annealing process, it is found that annealing TiO(2)/CuInS(2) photoelectrode at a suitable temperature would be beneficial for decreasing the charge recombination and accelerating the charge transport. After annealing at 400 °C, a significantly enhanced photovoltaic properties of solid-state CuInS(2) QDSSCs are obtained, achieving the power conversion efficiency (PCE) of 3.13%, along with an open-circuit voltage (V(OC)) of 0.68 V, a short-circuit photocurrent density (J(SC)) of 11.33 mA cm(−2), and a fill factor (FF) of 0.41. The enhancement in the performance of solar cells is mainly ascribed to the suppression of charge recombination and the promotion of the electron transfer after annealing. |
format | Online Article Text |
id | pubmed-6554371 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-65543712019-06-21 Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination Fu, Bowen Deng, Chong Yang, Lin Nanoscale Res Lett Nano Express Copper indium sulfide quantum dots (CuInS(2) QDs) were incorporated into a nanocrystalline TiO(2) film by using spin coating-assisted successive ionic layer adsorption and reaction process to fabricate CuInS(2) QD-sensitized TiO(2) photoelectrodes for the solid-state quantum dot-sensitized solar cell (QDSSC) applications. The result shows that the photovoltaic performance of solar cell is extremely dependent on the number of cycles, which has an appreciable impact on the coverage ratio of CuInS(2) on the surface of TiO(2) and the density of surface defect states. In the following high-temperature annealing process, it is found that annealing TiO(2)/CuInS(2) photoelectrode at a suitable temperature would be beneficial for decreasing the charge recombination and accelerating the charge transport. After annealing at 400 °C, a significantly enhanced photovoltaic properties of solid-state CuInS(2) QDSSCs are obtained, achieving the power conversion efficiency (PCE) of 3.13%, along with an open-circuit voltage (V(OC)) of 0.68 V, a short-circuit photocurrent density (J(SC)) of 11.33 mA cm(−2), and a fill factor (FF) of 0.41. The enhancement in the performance of solar cells is mainly ascribed to the suppression of charge recombination and the promotion of the electron transfer after annealing. Springer US 2019-06-06 /pmc/articles/PMC6554371/ /pubmed/31172299 http://dx.doi.org/10.1186/s11671-019-2998-7 Text en © The Author(s). 2019 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Nano Express Fu, Bowen Deng, Chong Yang, Lin Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination |
title | Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination |
title_full | Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination |
title_fullStr | Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination |
title_full_unstemmed | Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination |
title_short | Efficiency Enhancement of Solid-State CuInS(2) Quantum Dot-Sensitized Solar Cells by Improving the Charge Recombination |
title_sort | efficiency enhancement of solid-state cuins(2) quantum dot-sensitized solar cells by improving the charge recombination |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6554371/ https://www.ncbi.nlm.nih.gov/pubmed/31172299 http://dx.doi.org/10.1186/s11671-019-2998-7 |
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