Journal article Open Access
Kochergin, Yaroslav S.;
Noda, Yu;
Kulkarni, Ranjit;
Škodáková, Klára;
Tarábek, Ján;
Schmidt, Johannes;
Bojdys, Michael J.
<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd"> <identifier identifierType="URL">https://zenodo.org/record/3466483</identifier> <creators> <creator> <creatorName>Kochergin, Yaroslav S.</creatorName> <givenName>Yaroslav S.</givenName> <familyName>Kochergin</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-9060-6350</nameIdentifier> <affiliation>Humboldt-Universität zu Berlin</affiliation> </creator> <creator> <creatorName>Noda, Yu</creatorName> <givenName>Yu</givenName> <familyName>Noda</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0003-0715-5534</nameIdentifier> <affiliation>Humboldt-Universität zu Berlin</affiliation> </creator> <creator> <creatorName>Kulkarni, Ranjit</creatorName> <givenName>Ranjit</givenName> <familyName>Kulkarni</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-8251-1407</nameIdentifier> <affiliation>Humboldt-Universität zu Berlin</affiliation> </creator> <creator> <creatorName>Škodáková, Klára</creatorName> <givenName>Klára</givenName> <familyName>Škodáková</familyName> <affiliation>Institute of Organic Chemistry and Biochemistry of the CAS</affiliation> </creator> <creator> <creatorName>Tarábek, Ján</creatorName> <givenName>Ján</givenName> <familyName>Tarábek</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0003-0116-3824</nameIdentifier> <affiliation>Institute of Organic Chemistry and Biochemistry of the CAS</affiliation> </creator> <creator> <creatorName>Schmidt, Johannes</creatorName> <givenName>Johannes</givenName> <familyName>Schmidt</familyName> <affiliation>Technische Universität Berlin</affiliation> </creator> <creator> <creatorName>Bojdys, Michael J.</creatorName> <givenName>Michael J.</givenName> <familyName>Bojdys</familyName> <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-2592-4168</nameIdentifier> <affiliation>Humboldt-Universität zu Berlin</affiliation> </creator> </creators> <titles> <title>Sulfur- and nitrogen-containing porous donor-acceptor polymers as real-time optical and chemical sensors</title> </titles> <publisher>Zenodo</publisher> <publicationYear>2019</publicationYear> <subjects> <subject>Conjugated microporous polymers</subject> <subject>donor-acceptor systems</subject> <subject>acid-base sensor</subject> <subject>fluorescence sensing</subject> <subject>semiconductors</subject> </subjects> <dates> <date dateType="Issued">2019-10-01</date> </dates> <language>en</language> <resourceType resourceTypeGeneral="JournalArticle"/> <alternateIdentifiers> <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/3466483</alternateIdentifier> </alternateIdentifiers> <relatedIdentifiers> <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1021/acs.macromol.9b01643</relatedIdentifier> </relatedIdentifiers> <rightsList> <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights> <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights> </rightsList> <descriptions> <description descriptionType="Abstract"><p>Fully aromatic, organic polymers have the advantage of being composed from light, abundant elements, and are hailed as candidates in electronic and optical devices &ldquo;beyond silicon&rdquo;, yet, applications that make use of their &pi;-conjugated backbone and optical bandgap are lacking outside of heterogeneous catalysis. Herein, we use a series of sulfur- and nitrogen-containing porous polymers (SNPs) as real-time optical and electronic sensors reversibly triggered and re-set by acid and ammonia vapors. Our SNPs incorporate donor-acceptor and donor-donor motifs in extended networks and enable us to study the changes in bulk conductivity, optical bandgap, and fluorescence life-times as a function of &pi;-electron de-/localization in the pristine and protonated states. Interestingly, we find that protonated donor-acceptor polymers show a decrease of the optical bandgap by 0.42 eV to 0.76 eV and longer fluorescence life-times. In contrast, protonation of a donor-donor polymer does not affect its bandgap; however, it leads to an increase of electrical conductivity by up to 25-fold and shorter fluorescence life-times. The design strategies highlighted in this study open new avenues towards useful chemical switches and sensors based on modular purely organic materials.</p></description> </descriptions> <fundingReferences> <fundingReference> <funderName>European Commission</funderName> <funderIdentifier funderIdentifierType="Crossref Funder ID">10.13039/501100000780</funderIdentifier> <awardNumber awardURI="info:eu-repo/grantAgreement/EC/H2020/678462/">678462</awardNumber> <awardTitle>Layered functional materials - beyond 'graphene'</awardTitle> </fundingReference> </fundingReferences> </resource>
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