Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells
It has been shown that there is an optimum charge carrier mobility that leads to a peak in the efficiency for organic bulk heterojunction solar cells with mobility-dependent recombination rate. Hence, improving the mobility is considered as one of the ways to increase the efficiency. In this stud...
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AIP Publishing
2014
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iium-470832018-10-29T09:26:59Z http://irep.iium.edu.my/47083/ Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells Inche Ibrahim, Mohd Lukman Ahmad, Zubair Sulaiman, Khaulah Muniandy, S. V. QC Physics TK2896 Production of electricity by direct energy conversion It has been shown that there is an optimum charge carrier mobility that leads to a peak in the efficiency for organic bulk heterojunction solar cells with mobility-dependent recombination rate. Hence, improving the mobility is considered as one of the ways to increase the efficiency. In this study, we investigate the combined influence of charge carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells by performing drift-diffusion calculations. We find that a higher dielectric constant leads to a higher peak efficiency together with a lower optimum mobility. We also find that if the dielectric constant of the active material can be increased significantly (to around 8 or higher), it is then possible that the mobility of the active material need not to be improved in order to achieve the maximum efficiency. This study demonstrates the importance of knowing the interplay between the mobility and the dielectric constant with regard to the efficiency. C 2014 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License. AIP Publishing 2014-05-29 Article PeerReviewed application/pdf en http://irep.iium.edu.my/47083/1/AIP_Advances_4%2C_057133_%282014%29.pdf Inche Ibrahim, Mohd Lukman and Ahmad, Zubair and Sulaiman, Khaulah and Muniandy, S. V. (2014) Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells. AIP Advances, 4 (5). 057133-1. ISSN 2158-3226 http://scitation.aip.org/content/aip/journal/adva/4/5/10.1063/1.4881080 10.1063/1.4881080 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
| building |
IIUM Repository |
| collection |
Online Access |
| language |
English |
| topic |
QC Physics TK2896 Production of electricity by direct energy conversion |
| spellingShingle |
QC Physics TK2896 Production of electricity by direct energy conversion Inche Ibrahim, Mohd Lukman Ahmad, Zubair Sulaiman, Khaulah Muniandy, S. V. Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells |
| description |
It has been shown that there is an optimum charge carrier mobility that leads to a peak
in the efficiency for organic bulk heterojunction solar cells with mobility-dependent
recombination rate. Hence, improving the mobility is considered as one of the ways to
increase the efficiency. In this study, we investigate the combined influence of charge
carrier mobility and dielectric constant on the performance of organic bulk heterojunction
solar cells by performing drift-diffusion calculations. We find that a higher
dielectric constant leads to a higher peak efficiency together with a lower optimum
mobility. We also find that if the dielectric constant of the active material can be increased
significantly (to around 8 or higher), it is then possible that the mobility of the
active material need not to be improved in order to achieve the maximum efficiency.
This study demonstrates the importance of knowing the interplay between the mobility
and the dielectric constant with regard to the efficiency. C 2014 Author(s). All
article content, except where otherwise noted, is licensed under a Creative Commons
Attribution 3.0 Unported License. |
| format |
Article |
| author |
Inche Ibrahim, Mohd Lukman Ahmad, Zubair Sulaiman, Khaulah Muniandy, S. V. |
| author_facet |
Inche Ibrahim, Mohd Lukman Ahmad, Zubair Sulaiman, Khaulah Muniandy, S. V. |
| author_sort |
Inche Ibrahim, Mohd Lukman |
| title |
Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells |
| title_short |
Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells |
| title_full |
Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells |
| title_fullStr |
Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells |
| title_full_unstemmed |
Combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells |
| title_sort |
combined influence of carrier mobility and dielectric constant on the performance of organic bulk heterojunction solar cells |
| publisher |
AIP Publishing |
| publishDate |
2014 |
| url |
http://irep.iium.edu.my/47083/ http://irep.iium.edu.my/47083/ http://irep.iium.edu.my/47083/ http://irep.iium.edu.my/47083/1/AIP_Advances_4%2C_057133_%282014%29.pdf |
| first_indexed |
2023-09-18T21:07:01Z |
| last_indexed |
2023-09-18T21:07:01Z |
| _version_ |
1777411000873517056 |