Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers
We examine the modulation effects of thicknesses of both a photoactive layer (a bulk-heterojunction (BHJ) of poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM)) and an optical spacer of a transparent metal oxide, for power conversion efficiency optimization of organic...
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| Format: | Online |
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Springer
2014
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4165800/ |
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pubmed-41658002014-09-19 Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers Li, Qi Yoon, Won Jung Ju, Heongkyu Nano Express We examine the modulation effects of thicknesses of both a photoactive layer (a bulk-heterojunction (BHJ) of poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM)) and an optical spacer of a transparent metal oxide, for power conversion efficiency optimization of organic photovoltaic devices. The redistribution of the optical intensity at the photoactive layer via the thickness modulation of both layers is taken into account, to produce three-dimensional (3D) plots as a function of both layer thicknesses of 0 to 400 nm range (5 nm step), for the device efficiency optimization. The modulation pattern of absorption is produced in the 3D plot as scanning the thicknesses of both layers as a result of modulation of interference between incoming and reflected light, which can be secured by changing the effective optical path length between two electrodes of a photovoltaic device. It is also seen that the case of inserting the spacer of the higher refractive index demands finer adjustment of the spacer layer thickness to achieve the optimum device efficiency. Springer 2014-09-02 /pmc/articles/PMC4165800/ /pubmed/25242905 http://dx.doi.org/10.1186/1556-276X-9-460 Text en Copyright © 2014 Li et al.; licensee Springer. http://creativecommons.org/licenses/by/4.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. |
| repository_type |
Open Access Journal |
| institution_category |
Foreign Institution |
| institution |
US National Center for Biotechnology Information |
| building |
NCBI PubMed |
| collection |
Online Access |
| language |
English |
| format |
Online |
| author |
Li, Qi Yoon, Won Jung Ju, Heongkyu |
| spellingShingle |
Li, Qi Yoon, Won Jung Ju, Heongkyu Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers |
| author_facet |
Li, Qi Yoon, Won Jung Ju, Heongkyu |
| author_sort |
Li, Qi |
| title |
Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers |
| title_short |
Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers |
| title_full |
Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers |
| title_fullStr |
Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers |
| title_full_unstemmed |
Optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers |
| title_sort |
optimization of an organic photovoltaic device via modulation of thickness of photoactive and optical spacer layers |
| description |
We examine the modulation effects of thicknesses of both a photoactive layer (a bulk-heterojunction (BHJ) of poly(3-hexylthiophene) and [6,6]-phenyl-C61-butyric acid methyl ester (P3HT:PCBM)) and an optical spacer of a transparent metal oxide, for power conversion efficiency optimization of organic photovoltaic devices. The redistribution of the optical intensity at the photoactive layer via the thickness modulation of both layers is taken into account, to produce three-dimensional (3D) plots as a function of both layer thicknesses of 0 to 400 nm range (5 nm step), for the device efficiency optimization. The modulation pattern of absorption is produced in the 3D plot as scanning the thicknesses of both layers as a result of modulation of interference between incoming and reflected light, which can be secured by changing the effective optical path length between two electrodes of a photovoltaic device. It is also seen that the case of inserting the spacer of the higher refractive index demands finer adjustment of the spacer layer thickness to achieve the optimum device efficiency. |
| publisher |
Springer |
| publishDate |
2014 |
| url |
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4165800/ |
| _version_ |
1613134418083315712 |