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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Autores principales: Lijia Chen, Lun Cai, Lianbin Niu, Pan Guo, Qunliang Song
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Lenguaje:EN
Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/120953aaafd54749917a72f84144f396
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spelling 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)
institution DOAJ
collection DOAJ
language EN
topic copper phthalocyanine
low temperature
absorption
exciton
organic solar cell
Mechanical engineering and machinery
TJ1-1570
spellingShingle 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
description 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
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