Alternative selection of processing additives to enhance the lifetime of OPVs

Hdl Handle:
http://hdl.handle.net/10034/600689
Title:
Alternative selection of processing additives to enhance the lifetime of OPVs
Authors:
Kettle, Jeff; Waters, Huw; Horie, Masaki; Smith, Graham C.
Abstract:
The use of processing additives is known to accelerate the degradation of Organic Photovoltaics (OPVs) and therefore, this paper studies the impact of selecting alternative processing additives for PCPDTBT:PC71BM solar cells in order to improve the stability. The use of naphthalene-based processing additives has been undertaken, which is shown to reduce the initial power conversion efficiency by 23%-42%, primarily due to a decrease in the short-circuit current density, but also fill factor. However, the stability is greatly enhanced by using such additives, with the long term stability (T50%) enhanced by a factor of four. The results show that there is a trade-off between initial performance and stability to consider when selecting the initial process additives. XPS studies have provided some insight into the decreased degradation and show that using 1-chloronaphthalene (ClN) leads to reduced morphology changes and reduced oxidation of the thiophene-ring within the PCPDTBT backbone.
Affiliation:
University of Bangor (Kettle, Waters), National Tsing Hua University Taiwan (Horie), University of Chester (Smith)
Citation:
Kettle, J., Waters, H., Horie, M., Smith, Graham C. (2016). Alternative selection of processing additives to enhance the lifetime of OPVs. Journal of Physics D: Applied Physics, 49(8). DOI: 10.1088/0022-3727/49/8/085601
Publisher:
IOP Publishing
Journal:
Journal of Physics D: Applied Physics
Publication Date:
27-Jan-2016
URI:
http://hdl.handle.net/10034/600689
DOI:
10.1088/0022-3727/49/8/085601
Additional Links:
http://iopscience.iop.org/article/10.1088/0022-3727/49/8/085601
Type:
Article
Language:
en
EISSN:
1361-6463
Sponsors:
HW would like to thank Bangor University for his 125 scholarship enabling his PhD study. JK would like to thank Sêr Cymru national research network in Advanced Engineering and Materials and the Newton Research Collaboration Programme scheme through the Royal Academy for Engineering
Appears in Collections:
Natural Sciences

Full metadata record

DC FieldValue Language
dc.contributor.authorKettle, Jeffen
dc.contributor.authorWaters, Huwen
dc.contributor.authorHorie, Masakien
dc.contributor.authorSmith, Graham C.en
dc.date.accessioned2016-03-07T11:09:49Zen
dc.date.available2016-03-07T11:09:49Zen
dc.date.issued2016-01-27en
dc.identifier.citationKettle, J., Waters, H., Horie, M., Smith, Graham C. (2016). Alternative selection of processing additives to enhance the lifetime of OPVs. Journal of Physics D: Applied Physics, 49(8). DOI: 10.1088/0022-3727/49/8/085601en
dc.identifier.doi10.1088/0022-3727/49/8/085601en
dc.identifier.urihttp://hdl.handle.net/10034/600689en
dc.description.abstractThe use of processing additives is known to accelerate the degradation of Organic Photovoltaics (OPVs) and therefore, this paper studies the impact of selecting alternative processing additives for PCPDTBT:PC71BM solar cells in order to improve the stability. The use of naphthalene-based processing additives has been undertaken, which is shown to reduce the initial power conversion efficiency by 23%-42%, primarily due to a decrease in the short-circuit current density, but also fill factor. However, the stability is greatly enhanced by using such additives, with the long term stability (T50%) enhanced by a factor of four. The results show that there is a trade-off between initial performance and stability to consider when selecting the initial process additives. XPS studies have provided some insight into the decreased degradation and show that using 1-chloronaphthalene (ClN) leads to reduced morphology changes and reduced oxidation of the thiophene-ring within the PCPDTBT backbone.en
dc.description.sponsorshipHW would like to thank Bangor University for his 125 scholarship enabling his PhD study. JK would like to thank Sêr Cymru national research network in Advanced Engineering and Materials and the Newton Research Collaboration Programme scheme through the Royal Academy for Engineeringen
dc.language.isoenen
dc.publisherIOP Publishingen
dc.relation.urlhttp://iopscience.iop.org/article/10.1088/0022-3727/49/8/085601en
dc.subjectorganic photovoltaicsen
dc.subjectsolar cellsen
dc.subjectdegradationen
dc.subjectXPSen
dc.titleAlternative selection of processing additives to enhance the lifetime of OPVsen
dc.typeArticleen
dc.identifier.eissn1361-6463en
dc.contributor.departmentUniversity of Bangor (Kettle, Waters), National Tsing Hua University Taiwan (Horie), University of Chester (Smith)en
dc.identifier.journalJournal of Physics D: Applied Physicsen
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