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Copper coordination polymers with selective hole conductivity
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström. Newcastle Univ, Sch Nat & Environm Sci, Bedson Bldg, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England.ORCID iD: 0000-0001-9126-7410
Imperial Coll London, Dept Mat, Exhibit Rd, London SW7 2AZ, England.ORCID iD: 0000-0001-6749-0129
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Chemistry - Ångström.ORCID iD: 0000-0003-2134-4702
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science and Engineering, Solid State Physics.ORCID iD: 0000-0003-2759-7356
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2022 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488, E-ISSN 2050-7496, Vol. 10, no 17, p. 9582-9591Article in journal (Refereed) Published
Abstract [en]

Emerging technologies in solar energy will be critical in enabling worldwide society in overcoming the present energy challenges and reaching carbon net zero. Inefficient and unstable charge transport materials limit the current emerging energy conversion and storage technologies. Low-dimensional coordination polymers represent an alternative, unprecedented class of charge transport materials, comprised of molecular building blocks. Here, we provide a comprehensive study of mixed-valence coordination polymers from an analysis of the charge transport mechanism to their implementation as hole-conducting layers. Cu-II dithiocarbamate complexes afford morphology control of 1D polymer chains linked by (CuI2X2) copper halide rhombi. Concerted theoretical and experimental efforts identified the charge transport mechanism in the transition to band-like transport with a modeled effective hole mass of 6m(e). The iodide-bridged coordination polymer showed an excellent conductivity of 1 mS cm(-1) and a hole mobility of 5.8 10(-4) cm(2) (V s)(-1) at room temperature. Nanosecond selective hole injection into coordination polymer thin films was captured by nanosecond photoluminescence of halide perovskite films. Coordination polymers constitute a sustainable, tunable alternative to the current standard of heavily doped organic hole conductors.

Place, publisher, year, edition, pages
2022. Vol. 10, no 17, p. 9582-9591
National Category
Condensed Matter Physics Materials Chemistry
Identifiers
URN: urn:nbn:se:uu:diva-484838DOI: 10.1039/d2ta00267aISI: 000775100700001OAI: oai:DiVA.org:uu-484838DiVA, id: diva2:1696498
Funder
Swedish Energy Agency, 42037-1Swedish Energy Agency, 43294-1StandUpAvailable from: 2022-09-16 Created: 2022-09-16 Last updated: 2022-09-16Bibliographically approved

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Publisher's full texthttps://pubs.rsc.org/en/content/articlelanding/2022/TA/D2TA00267A

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Michaels, HannesKim, Byeong JoEdvinsson, TomasBoschloo, GerritFreitag, Marina

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Michaels, HannesGolomb, Matthias J.Kim, Byeong JoEdvinsson, TomasWaddell, Paul G.Boschloo, GerritWalsh, AronFreitag, Marina
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Department of Chemistry - ÅngströmSolid State Physics
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Journal of Materials Chemistry A
Condensed Matter PhysicsMaterials Chemistry

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