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dc.contributor.authorAscherl, Laura
dc.contributor.authorEvans, Emrys
dc.contributor.authorHennemann, Matthias
dc.contributor.authorDi Nuzzo, Daniele
dc.contributor.authorHufnagel, Alexander G
dc.contributor.authorBeetz, Michael
dc.contributor.authorFriend, Richard
dc.contributor.authorClark, Timothy
dc.contributor.authorBein, Thomas
dc.contributor.authorAuras, Florian
dc.date.accessioned2018-11-22T00:31:05Z
dc.date.available2018-11-22T00:31:05Z
dc.date.issued2018-09-18
dc.identifier.issn2041-1723
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/285607
dc.description.abstractCovalent organic frameworks (COFs) are an emerging class of highly tuneable crystalline, porous materials. Here we report the first COFs that change their electronic structure reversibly depending on the surrounding atmosphere. These COFs can act as solid-state supramolecular solvatochromic sensors that show a strong colour change when exposed to humidity or solvent vapours, dependent on vapour concentration and solvent polarity. The excellent accessibility of the pores in vertically oriented films results in ultrafast response times below 200 ms, outperforming commercially available humidity sensors by more than an order of magnitude. Employing a solvatochromic COF film as a vapour-sensitive light filter, we demonstrate a fast humidity sensor with full reversibility and stability over at least 4000 cycles. Considering their immense chemical diversity and modular design, COFs with fine-tuned solvatochromic properties could broaden the range of possible applications for these materials in sensing and optoelectronics.
dc.format.mediumElectronic
dc.languageeng
dc.publisherSpringer Science and Business Media LLC
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleSolvatochromic covalent organic frameworks.
dc.typeArticle
prism.issueIdentifier1
prism.publicationDate2018
prism.publicationNameNat Commun
prism.startingPage3802
prism.volume9
dc.identifier.doi10.17863/CAM.32961
dcterms.dateAccepted2018-08-16
rioxxterms.versionofrecord10.1038/s41467-018-06161-w
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-09-18
dc.contributor.orcidDi Nuzzo, Daniele [0000-0002-4462-9068]
dc.contributor.orcidHufnagel, Alexander G [0000-0003-4088-937X]
dc.contributor.orcidFriend, Richard [0000-0001-6565-6308]
dc.contributor.orcidAuras, Florian [0000-0003-1709-4384]
dc.identifier.eissn2041-1723
rioxxterms.typeJournal Article/Review
pubs.funder-project-idEuropean Research Council (670405)
cam.issuedOnline2018-09-18


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International