High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives

Handle URI:
http://hdl.handle.net/10754/622411
Title:
High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives
Authors:
Nikolka, Mark; Nasrallah, Iyad; Rose, Bradley Daniel ( 0000-0002-1774-3981 ) ; Ravva, Mahesh Kumar ( 0000-0001-9619-0176 ) ; Broch, Katharina; Sadhanala, Aditya; Harkin, David; Charmet, Jerome; Hurhangee, Michael; Brown, Adam; Illig, Steffen; Too, Patrick; Jongman, Jan; McCulloch, Iain ( 0000-0002-6340-7217 ) ; Bredas, Jean-Luc ( 0000-0001-7278-4471 ) ; Sirringhaus, Henning
Abstract:
Due to their low-temperature processing properties and inherent mechanical flexibility, conjugated polymer field-effect transistors (FETs) are promising candidates for enabling flexible electronic circuits and displays. Much progress has been made on materials performance; however, there remain significant concerns about operational and environmental stability, particularly in the context of applications that require a very high level of threshold voltage stability, such as active-matrix addressing of organic light-emitting diode displays. Here, we investigate the physical mechanisms behind operational and environmental degradation of high-mobility, p-type polymer FETs and demonstrate an effective route to improve device stability. We show that water incorporated in nanometre-sized voids within the polymer microstructure is the key factor in charge trapping and device degradation. By inserting molecular additives that displace water from these voids, it is possible to increase the stability as well as uniformity to a high level sufficient for demanding industrial applications.
KAUST Department:
KAUST Solar Center (KSC); Physical Sciences and Engineering (PSE) Division; Chemical Science Program
Citation:
Nikolka M, Nasrallah I, Rose B, Ravva MK, Broch K, et al. (2016) High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives. Nature Materials. Available: http://dx.doi.org/10.1038/nmat4785.
Publisher:
Springer Nature
Journal:
Nature Materials
Issue Date:
12-Dec-2016
DOI:
10.1038/nmat4785
Type:
Article
ISSN:
1476-1122; 1476-4660
Sponsors:
We gratefully acknowledge financial support from Innovate UK (PORSCHED project) and the Engineering and Physical Sciences Research Council though a Programme Grant (EP/M005141/1). I.N. acknowledges studentship support from FlexEnable Ltd. K.B. gratefully acknowledges financial support from the Deutsche Forschungsgemeinschaft (BR 4869/1-1). A.S. would like to acknowledge support from the India-UK APEX project. B.R., M.K.R. and J.-L.B. acknowledge the financial support from King Abdullah University of Science and Technology (KAUST), the KAUST Competitive Research Grant program, and the Office of Naval Research Global (Award N62909-15-1-2003); they also acknowledge the IT Research Computing Team and Supercomputing Laboratory at KAUST for providing computational and storage resources.
Additional Links:
http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat4785.html
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Chemical Science Program; KAUST Solar Center (KSC)

Full metadata record

DC FieldValue Language
dc.contributor.authorNikolka, Marken
dc.contributor.authorNasrallah, Iyaden
dc.contributor.authorRose, Bradley Danielen
dc.contributor.authorRavva, Mahesh Kumaren
dc.contributor.authorBroch, Katharinaen
dc.contributor.authorSadhanala, Adityaen
dc.contributor.authorHarkin, Daviden
dc.contributor.authorCharmet, Jeromeen
dc.contributor.authorHurhangee, Michaelen
dc.contributor.authorBrown, Adamen
dc.contributor.authorIllig, Steffenen
dc.contributor.authorToo, Patricken
dc.contributor.authorJongman, Janen
dc.contributor.authorMcCulloch, Iainen
dc.contributor.authorBredas, Jean-Lucen
dc.contributor.authorSirringhaus, Henningen
dc.date.accessioned2017-01-02T09:28:29Z-
dc.date.available2017-01-02T09:28:29Z-
dc.date.issued2016-12-12en
dc.identifier.citationNikolka M, Nasrallah I, Rose B, Ravva MK, Broch K, et al. (2016) High operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additives. Nature Materials. Available: http://dx.doi.org/10.1038/nmat4785.en
dc.identifier.issn1476-1122en
dc.identifier.issn1476-4660en
dc.identifier.doi10.1038/nmat4785en
dc.identifier.urihttp://hdl.handle.net/10754/622411-
dc.description.abstractDue to their low-temperature processing properties and inherent mechanical flexibility, conjugated polymer field-effect transistors (FETs) are promising candidates for enabling flexible electronic circuits and displays. Much progress has been made on materials performance; however, there remain significant concerns about operational and environmental stability, particularly in the context of applications that require a very high level of threshold voltage stability, such as active-matrix addressing of organic light-emitting diode displays. Here, we investigate the physical mechanisms behind operational and environmental degradation of high-mobility, p-type polymer FETs and demonstrate an effective route to improve device stability. We show that water incorporated in nanometre-sized voids within the polymer microstructure is the key factor in charge trapping and device degradation. By inserting molecular additives that displace water from these voids, it is possible to increase the stability as well as uniformity to a high level sufficient for demanding industrial applications.en
dc.description.sponsorshipWe gratefully acknowledge financial support from Innovate UK (PORSCHED project) and the Engineering and Physical Sciences Research Council though a Programme Grant (EP/M005141/1). I.N. acknowledges studentship support from FlexEnable Ltd. K.B. gratefully acknowledges financial support from the Deutsche Forschungsgemeinschaft (BR 4869/1-1). A.S. would like to acknowledge support from the India-UK APEX project. B.R., M.K.R. and J.-L.B. acknowledge the financial support from King Abdullah University of Science and Technology (KAUST), the KAUST Competitive Research Grant program, and the Office of Naval Research Global (Award N62909-15-1-2003); they also acknowledge the IT Research Computing Team and Supercomputing Laboratory at KAUST for providing computational and storage resources.en
dc.publisherSpringer Natureen
dc.relation.urlhttp://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat4785.htmlen
dc.subjectElectronic devicesen
dc.subjectMolecular electronicsen
dc.titleHigh operational and environmental stability of high-mobility conjugated polymer field-effect transistors through the use of molecular additivesen
dc.typeArticleen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentChemical Science Programen
dc.identifier.journalNature Materialsen
dc.contributor.institutionOptoelectronics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, UKen
dc.contributor.institutionDepartment of Chemistry, Lensfield Road, Cambridge CB2 1EW, UKen
dc.contributor.institutionDepartment of Chemistry and Centre for Plastic Electronics, Imperial College London, London SW7 2AZ, UKen
dc.contributor.institutionFlexEnable Ltd, 34 Cambridge Science Park, Cambridge CB4 0FX, UKen
kaust.authorRose, Bradley Danielen
kaust.authorRavva, Mahesh Kumaren
kaust.authorMcCulloch, Iainen
kaust.authorBredas, Jean-Lucen
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