Influence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells
Although the effect of high temperature on the performance of organic solar cells has been widely investigated, it is inevitably influenced by the associated annealing effect (which usually leads to film morphology change and variation in electrical properties), which makes the discussion more sophi...
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2021
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oai:doaj.org-article:120953aaafd54749917a72f84144f3962021-11-25T18:22:53ZInfluence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells10.3390/mi121112952072-666Xhttps://doaj.org/article/120953aaafd54749917a72f84144f3962021-10-01T00:00:00Zhttps://www.mdpi.com/2072-666X/12/11/1295https://doaj.org/toc/2072-666XAlthough the effect of high temperature on the performance of organic solar cells has been widely investigated, it is inevitably influenced by the associated annealing effect (which usually leads to film morphology change and variation in electrical properties), which makes the discussion more sophisticated. In this study, we simplified the issue and investigated the influence of low temperatures (from room temperature to 77 K) on the photocurrent and internal/external quantum efficiency of a CuPc/C60 based solar cell. We found that besides the charge dynamic process (charge transport), one or more of the exciton dynamic processes, such as exciton diffusion and exciton dissociation, also play a significant role in affecting the photocurrent of organic solar cells at different temperatures. Additionally, the results showed that the temperature had negligible influence on the absorption of the CuPc film as well as the exciton generation process, but obviously influenced the other two exciton dynamic processes (exciton diffusion and exciton dissociation).Lijia ChenLun CaiLianbin NiuPan GuoQunliang SongMDPI AGarticlecopper phthalocyaninelow temperatureabsorptionexcitonorganic solar cellMechanical engineering and machineryTJ1-1570ENMicromachines, Vol 12, Iss 1295, p 1295 (2021) |
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copper phthalocyanine low temperature absorption exciton organic solar cell Mechanical engineering and machinery TJ1-1570 |
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copper phthalocyanine low temperature absorption exciton organic solar cell Mechanical engineering and machinery TJ1-1570 Lijia Chen Lun Cai Lianbin Niu Pan Guo Qunliang Song Influence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells |
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Although the effect of high temperature on the performance of organic solar cells has been widely investigated, it is inevitably influenced by the associated annealing effect (which usually leads to film morphology change and variation in electrical properties), which makes the discussion more sophisticated. In this study, we simplified the issue and investigated the influence of low temperatures (from room temperature to 77 K) on the photocurrent and internal/external quantum efficiency of a CuPc/C60 based solar cell. We found that besides the charge dynamic process (charge transport), one or more of the exciton dynamic processes, such as exciton diffusion and exciton dissociation, also play a significant role in affecting the photocurrent of organic solar cells at different temperatures. Additionally, the results showed that the temperature had negligible influence on the absorption of the CuPc film as well as the exciton generation process, but obviously influenced the other two exciton dynamic processes (exciton diffusion and exciton dissociation). |
format |
article |
author |
Lijia Chen Lun Cai Lianbin Niu Pan Guo Qunliang Song |
author_facet |
Lijia Chen Lun Cai Lianbin Niu Pan Guo Qunliang Song |
author_sort |
Lijia Chen |
title |
Influence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells |
title_short |
Influence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells |
title_full |
Influence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells |
title_fullStr |
Influence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells |
title_full_unstemmed |
Influence of Temperature on Exciton Dynamic Processes in CuPc/C60 Based Solar Cells |
title_sort |
influence of temperature on exciton dynamic processes in cupc/c60 based solar cells |
publisher |
MDPI AG |
publishDate |
2021 |
url |
https://doaj.org/article/120953aaafd54749917a72f84144f396 |
work_keys_str_mv |
AT lijiachen influenceoftemperatureonexcitondynamicprocessesincupcc60basedsolarcells AT luncai influenceoftemperatureonexcitondynamicprocessesincupcc60basedsolarcells AT lianbinniu influenceoftemperatureonexcitondynamicprocessesincupcc60basedsolarcells AT panguo influenceoftemperatureonexcitondynamicprocessesincupcc60basedsolarcells AT qunliangsong influenceoftemperatureonexcitondynamicprocessesincupcc60basedsolarcells |
_version_ |
1718411241969418240 |