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dc.contributor.authorNikolka, Mark
dc.contributor.authorSchweicher, Guillaume
dc.contributor.authorArmitage, John
dc.contributor.authorNasrallah, Iyad
dc.contributor.authorJellett, Cameron
dc.contributor.authorGuo, Zhijie
dc.contributor.authorHurhangee, Michael
dc.contributor.authorSadhanala, Aditya
dc.contributor.authorMcCulloch, Iain
dc.contributor.authorNielsen, Christian B.
dc.contributor.authorSirringhaus, Henning
dc.date.accessioned2021-04-14T09:53:07Z
dc.date.available2021-04-14T09:53:07Z
dc.date.issued2018-07-18
dc.identifier.citationNikolka, M., Schweicher, G., Armitage, J., Nasrallah, I., Jellett, C., Guo, Z., … Sirringhaus, H. (2018). Performance Improvements in Conjugated Polymer Devices by Removal of Water-Induced Traps. Advanced Materials, 30(36), 1801874. doi:10.1002/adma.201801874
dc.identifier.issn0935-9648
dc.identifier.doi10.1002/adma.201801874
dc.identifier.urihttp://hdl.handle.net/10754/668764
dc.description.abstractThe exploration of a wide range of molecular structures has led to the development of high-performance conjugated polymer semiconductors for flexible electronic applications including displays, sensors, and logic circuits. Nevertheless, many conjugated polymer field-effect transistors (OFETs) exhibit nonideal device characteristics and device instabilities rendering them unfit for industrial applications. These often do not originate in the material's intrinsic molecular structure, but rather in external trap states caused by chemical impurities or environmental species such as water. Here, a highly efficient mechanism is demonstrated for the removal of water-induced traps that are omnipresent in conjugated polymer devices even when processed in inert environments; the underlying mechanism is shown, by which small-molecular additives with water-binding nitrile groups or alternatively water–solvent azeotropes are capable of removing water-induced traps leading to a significant improvement in OFET performance. It is also shown how certain polymer structures containing strong hydrogen accepting groups will suffer from poor performances due to their high susceptibility to interact with water molecules; this allows the design guidelines for a next generation of stable, high-performing conjugated polymers to be set forth.
dc.description.sponsorshipThe authors gratefully acknowledge financial support the Physical Sciences Research Council though a Programme Grant (EP/M005141/1). M.N. acknowledges financial support from the European Commission through a Marie-Curie Individual Fellowship. G.S. acknowledges postdoctoral fellowship support from the Wiener-Anspach Foundation and The Leverhulme Trust (Early Career Fellowship supported by the Isaac Newton Trust).
dc.publisherWiley
dc.relation.urlhttp://doi.wiley.com/10.1002/adma.201801874
dc.rightsArchived with thanks to Advanced Materials
dc.titlePerformance Improvements in Conjugated Polymer Devices by Removal of Water-Induced Traps
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAdvanced Materials
dc.eprint.versionPost-print
dc.contributor.institutionOptoelectronics Group; Cavendish Laboratory; JJ Thomson Avenue Cambridge CB3 0HE UK
dc.contributor.institutionDepartment of Chemistry and Centre for Plastic Electronics Imperial College London; Exhibition Road London SW7 2AZ UK
dc.contributor.institutionDr. C. B. Nielsen; Materials Research Institute and School of Biological and Chemical Sciences; Queen Mary University of London; Mile End Road London E1 4NS UK
dc.contributor.institutionDepartment of Chemistry and Centre for Plastic Electronics; Imperial College London; Exhibition Road London SW7 2AZ UK
dc.identifier.volume30
dc.identifier.issue36
dc.identifier.pages1801874
kaust.personMcCulloch, Iain
dc.relation.issupplementedbyDOI:10.17863/cam.24907
dc.identifier.eid2-s2.0-85050951760
display.relations<b>Is Supplemented By:</b><br/> <ul><li><i>[Dataset]</i> <br/> Nikolka, M., Schweicher, G., Armitage, J., Jellett, C., Guo, Z., Hurhangee, M., Sadhanala, A., McCulloch, I., Nielsen, C. B., &amp; Sirringhaus, H. (2018). <i>Performance Improvements in Conjugated Polymer</i> [Data set]. Apollo - University of Cambridge Repository. https://doi.org/10.17863/CAM.24907. DOI: <a href="https://doi.org/10.17863/cam.24907" >10.17863/cam.24907</a> Handle: <a href="http://hdl.handle.net/10754/668780" >10754/668780</a></a></li></ul>


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