Show simple item record

dc.contributor.authorToyoda, Ryojun
dc.contributor.authorFukui, Naoya
dc.contributor.authorTjhe, Dionisius HL
dc.contributor.authorSelezneva, Ekaterina
dc.contributor.authorMaeda, Hiroaki
dc.contributor.authorBourgès, Cédric
dc.contributor.authorTan, Choon Meng
dc.contributor.authorTakada, Kenji
dc.contributor.authorSun, Yuanhui
dc.contributor.authorJacobs, Ian
dc.contributor.authorKamiya, Kazuhide
dc.contributor.authorMasunaga, Hiroyasu
dc.contributor.authorMori, Takao
dc.contributor.authorSasaki, Sono
dc.contributor.authorSirringhaus, Henning
dc.contributor.authorNishihara, Hiroshi
dc.date.accessioned2022-01-18T00:31:45Z
dc.date.available2022-01-18T00:31:45Z
dc.date.issued2022-01-18
dc.identifier.issn0935-9648
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/332765
dc.description.abstractCoordination nanosheets are an emerging class of two-dimensional, bottom-up materials having fully π-conjugated, planar, graphite-like structures with high electrical conductivities. Since their discovery, great effort has been devoted to expand the variety of coordination nanosheets; however, in most cases, their low crystallinity in thick films hampers practical device applications. In this study, mixtures of nickel and copper ions are employed to fabricate benzenehexathiolato (BHT) -based coordination nanosheet films, and serendipitously, we find that this heterometallicity preferentially forms a structural phase with improved film crystallinity. Spectroscopic and scattering measurements provide evidence for a bilayer structure with in-plane periodic arrangement of copper and nickel ions with the NiCu2 BHT formula. Compared with homometallic films, heterometallic films exhibit more crystalline microstructures with larger and more oriented grains, achieving higher electric conductivities reaching metallic behaviours. Low dependency of Seebeck coefficient on the mixing ratio of nickel and copper ions supports that the large variation in the conductivity data is not caused by change in the intrinsic properties of the films. Our findings open new pathways to improve crystallinity and to tune functional properties of two-dimensional coordination nanosheets. This article is protected by copyright. All rights reserved.
dc.description.sponsorshipEPSRC-JSPS core-to-core program (EP/S030662/1, JPJSCCA20190005)
dc.publisherWiley
dc.rightsAll Rights Reserved
dc.rights.urihttp://www.rioxx.net/licenses/all-rights-reserved
dc.titleHeterometallic Benzenehexathiolato Coordination Nanosheets: Periodic Structure Improves Crystallinity and Electrical Conductivity.
dc.typeArticle
dc.publisher.departmentDepartment of Physics
dc.date.updated2022-01-17T11:35:31Z
prism.publicationNameAdv Mater
dc.identifier.doi10.17863/CAM.80202
dcterms.dateAccepted2022-01-15
rioxxterms.versionofrecord10.1002/adma.202106204
rioxxterms.versionAM
dc.contributor.orcidJacobs, Ian [0000-0002-1535-4608]
dc.contributor.orcidSirringhaus, Henning [0000-0001-9827-6061]
dc.identifier.eissn1521-4095
rioxxterms.typeJournal Article/Review
pubs.funder-project-idThe Royal Society (nf121150)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/P007767/1)
pubs.funder-project-idEngineering and Physical Sciences Research Council (EP/S030662/1)
cam.issuedOnline2022-01-18
cam.orpheus.successTue Feb 01 19:02:45 GMT 2022 - Embargo updated*
cam.depositDate2022-01-17
pubs.licence-identifierapollo-deposit-licence-2-1
pubs.licence-display-nameApollo Repository Deposit Licence Agreement
rioxxterms.freetoread.startdate2023-01-18


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record