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Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells
Organic photovoltaics (OPVs) are fabricated with blended active layers of poly [[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl]]: [6,6]-phenylC71-butyric acid methyl ester (PTB7:PC(71)BM). The active layers are...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456692/ https://www.ncbi.nlm.nih.gov/pubmed/28773297 http://dx.doi.org/10.3390/ma9030171 |
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author | Wang, Lin Zhao, Suling Xu, Zheng Zhao, Jiao Huang, Di Zhao, Ling |
author_facet | Wang, Lin Zhao, Suling Xu, Zheng Zhao, Jiao Huang, Di Zhao, Ling |
author_sort | Wang, Lin |
collection | PubMed |
description | Organic photovoltaics (OPVs) are fabricated with blended active layers of poly [[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl]]: [6,6]-phenylC71-butyric acid methyl ester (PTB7:PC(71)BM). The active layers are prepared in chlorobenzene (CB) added different additives of 1, 8-Diiodooctane (DIO) and polystyrene (PS) with different concentrations by spin coating. A small addition, 0.5%–5% by weight relative to the BHJ components, of inert high molecular weight PS is used to increase the solution viscosity and film thickness without sacrificing desirable phase separation and structural order. The effects of the PS are studied with respect of photovoltaic parameters such as fill factor, short circuit current density, and power conversion efficiency. Together with DIO, the device with 3.0 v% DIO and 1 wt % PS shows a high power conversion efficiency (PCE) of 8.92% along with an open-circuit voltage (V(oc)) of 0.76 V, a short-circuit current (J(sc)) of 16.37 mA/cm(2), and a fill factor (FF) of 71.68%. The absorption and surface morphology of the active layers are investigated by UV-visible spectroscopy, atomic force microscopy (AFM) respectively. The positive effect of DIO and PS additives on the performance of the OPVs is attributed to the increased absorption and the charge carrier transport and collection. |
format | Online Article Text |
id | pubmed-5456692 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-54566922017-07-28 Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells Wang, Lin Zhao, Suling Xu, Zheng Zhao, Jiao Huang, Di Zhao, Ling Materials (Basel) Article Organic photovoltaics (OPVs) are fabricated with blended active layers of poly [[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene-2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno[3,4-b]thiophenediyl]]: [6,6]-phenylC71-butyric acid methyl ester (PTB7:PC(71)BM). The active layers are prepared in chlorobenzene (CB) added different additives of 1, 8-Diiodooctane (DIO) and polystyrene (PS) with different concentrations by spin coating. A small addition, 0.5%–5% by weight relative to the BHJ components, of inert high molecular weight PS is used to increase the solution viscosity and film thickness without sacrificing desirable phase separation and structural order. The effects of the PS are studied with respect of photovoltaic parameters such as fill factor, short circuit current density, and power conversion efficiency. Together with DIO, the device with 3.0 v% DIO and 1 wt % PS shows a high power conversion efficiency (PCE) of 8.92% along with an open-circuit voltage (V(oc)) of 0.76 V, a short-circuit current (J(sc)) of 16.37 mA/cm(2), and a fill factor (FF) of 71.68%. The absorption and surface morphology of the active layers are investigated by UV-visible spectroscopy, atomic force microscopy (AFM) respectively. The positive effect of DIO and PS additives on the performance of the OPVs is attributed to the increased absorption and the charge carrier transport and collection. MDPI 2016-03-05 /pmc/articles/PMC5456692/ /pubmed/28773297 http://dx.doi.org/10.3390/ma9030171 Text en © 2016 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 Wang, Lin Zhao, Suling Xu, Zheng Zhao, Jiao Huang, Di Zhao, Ling Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells |
title | Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells |
title_full | Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells |
title_fullStr | Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells |
title_full_unstemmed | Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells |
title_short | Integrated Effects of Two Additives on the Enhanced Performance of PTB7:PC(71)BM Polymer Solar Cells |
title_sort | integrated effects of two additives on the enhanced performance of ptb7:pc(71)bm polymer solar cells |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5456692/ https://www.ncbi.nlm.nih.gov/pubmed/28773297 http://dx.doi.org/10.3390/ma9030171 |
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