Repository logo
 

Single Atom Selenium Substitution-Mediated P-Type Doping in Polythiophenes toward High-Performance Organic Electronics and Thermoelectrics

Simple item page
cam.depositDate2022-03-18
cam.issuedOnline2022-06-10
cam.orpheus.counter7
cam.orpheus.successTue Jun 21 09:20:57 BST 2022 - Embargo updated
dc.contributor.authorChen, C
dc.contributor.authorJacobs, IE
dc.contributor.authorJellett, C
dc.contributor.authorJiao, X
dc.contributor.authorPonder, JF
dc.contributor.authorKang, B
dc.contributor.authorLee, SB
dc.contributor.authorHuang, Y
dc.contributor.authorZhang, L
dc.contributor.authorStatz, M
dc.contributor.authorSun, Y
dc.contributor.authorLin, Y
dc.contributor.authorKang, K
dc.contributor.authorShe, X
dc.contributor.authorHu, Y
dc.contributor.authorZhang, T
dc.contributor.authorJiang, L
dc.contributor.authorMcNeill, CR
dc.contributor.authorMcCulloch, I
dc.contributor.authorSirringhaus, H
dc.contributor.orcidSirringhaus, H [0000-0001-9827-6061]
dc.date.accessioned2022-03-22T00:32:00Z
dc.date.available2022-03-22T00:32:00Z
dc.date.issued2022
dc.date.updated2022-03-18T18:21:14Z
dc.description.abstract<jats:title>Abstract</jats:title><jats:p>Heavy heteroatom substitution of the backbone is an effective strategy to improve molecular packing and charge delocalization in polymer semiconductors. Such a backbone modification also facilitates oxidative doping as a result of reduced ionization potential (IP). Here, the effect of single‐atom selenium substitution on doping and charge transport properties of a class of polythiophene copolymers is explored. The room temperature (RT) conductivities of the doped polymers are significantly enhanced by the selenium substitution for both molecular doping and ion exchange doping. The enhanced conduction is rationalized by the better crystallinity of the selenium‐containing system, which can be reinforced by a chain‐extended ribbon‐phase morphology induced by thermal annealing, which is robust toward doping. The resulting increase in the charge delocalization of the doped selenium‐containing system is evidenced by temperature‐dependent conductivities. In ion exchange doped films the maximum conductivity of ≈700 S cm<jats:sup>−1</jats:sup> and a high thermoelectric (TE) power factor (PF) of 46.5 μW m<jats:sup>−1</jats:sup> K<jats:sup>−2</jats:sup> is achieved for the doped selenophene polymer and signatures of a metal‐insulator (M–I) transition are observed that are characteristics for heterogeneous conduction systems. The results show that single‐atom selenium substitution is an effective molecular design approach for improving the charge transport and TE properties of conjugated polymers.</jats:p>
dc.identifier.doi10.17863/CAM.82697
dc.identifier.eissn2199-160X
dc.identifier.issn2199-160X
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/335265
dc.language.isoeng
dc.publisherWiley
dc.publisher.departmentDepartment of Physics
dc.publisher.urlhttp://dx.doi.org/10.1002/aelm.202200053
dc.rightsAll Rights Reserved
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserved
dc.subjectchalcogen substitution
dc.subjectdoping
dc.subjectorganic electronics
dc.subjectpolythiophene
dc.subjectthermoelectrics
dc.titleSingle Atom Selenium Substitution-Mediated P-Type Doping in Polythiophenes toward High-Performance Organic Electronics and Thermoelectrics
dc.typeArticle
dcterms.dateAccepted2022-03-18
prism.publicationNameAdvanced Electronic Materials
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/R031894/1)
pubs.funder-project-idEuropean Research Council (610115)
pubs.funder-project-idRoyal Society (RP\R1\201082)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P024947/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P007767/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/S019367/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/R00661X/1)
pubs.funder-project-idEPSRC (via University of Manchester) (EP/X527257/1)
pubs.licence-display-nameApollo Repository Deposit Licence Agreement
pubs.licence-identifierapollo-deposit-licence-2-1
rioxxterms.typeJournal Article/Review
rioxxterms.versionAM
rioxxterms.versionofrecord10.1002/aelm.202200053

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Single site Se substitution_main_accepted.pdf
Size:
2.61 MB
Format:
Adobe Portable Document Format
Description:
Accepted version
Licence
http://www.rioxx.net/licenses/all-rights-reserved
Download

Collections

Cambridge University Research Outputs