Organic charge transfer cocrystals as additives for dissipation of contact charges on polymers

buir.contributor.authorEkim, Sunay Dilara
buir.contributor.authorKaya, Görkem Eylül
buir.contributor.authorBaytekin, Bilge
buir.contributor.orcidEkim, Sunay Dilara|0000-0002-6933-5576
buir.contributor.orcidBaytekin, Bilge|0000-0002-3867-3863
dc.citation.epage56026en_US
dc.citation.issueNumber50en_US
dc.citation.spage56018en_US
dc.citation.volumeNumber14en_US
dc.contributor.authorEkim, Sunay Dilara
dc.contributor.authorKaya, Görkem Eylül
dc.contributor.authorDaştemir, M.
dc.contributor.authorYildirim, E.
dc.contributor.authorBaytekin, H. T.
dc.contributor.authorBaytekin, Bilge
dc.date.accessioned2023-02-13T11:25:36Z
dc.date.available2023-02-13T11:25:36Z
dc.date.issued2022-12-06
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstractCommon polymers can accumulate surface charges through contact, a phenomenon known since ancient times. This charge accumulation can have detrimental consequences in industry. It causes accidents and yields enormous economic losses. Many empirical methods have been developed to prevent the problems caused by charge accumulation. However, a general chemical approach is still missing in the literature since the charge accumulation and discharging mechanisms have not been completely clarified. The current practice to achieve charge mitigation is to increase materials conductivity by high doping of conductive additives. A recent study showed that using photoexcitation of some organic dyes, charge decay can be started remotely, and the minute amount of additive does not change the material's conductivity. Here, we show the contact charging and charge decay behavior of polydimethylsiloxane doped with a series of organic charge transfer cocrystals (CTC) of TCNQ acceptor and substituted pyrene donors (CTC-PDMS). The results show that the CTC-PDMS are antistatic, and the discharging propensity of the composites follows the calculated charge transfer degree of the complexes. On the other hand, the CTC-PDMS are still insulators, as shown by their high surface resistivities. Kelvin probe force microscopy images of the contact-charged and discharged samples show a quick potential decay in CTC domains upon illumination. Combined with the fast overall decay observed, the antistatic behavior in these insulators can be attributed to an electron transfer between the mechanoions in the polymer and the CTC frontier orbitals. We believe our results will help with the general understanding of the molecular mechanism of contact charging and discharging and help develop insulator antistatics.en_US
dc.identifier.doi10.1021/acsami.2c13643en_US
dc.identifier.eissn1944-8252
dc.identifier.issn19448244
dc.identifier.urihttp://hdl.handle.net/11693/111211
dc.language.isoEnglishen_US
dc.publisherAmerican Chemical Societyen_US
dc.relation.isversionofhttps://dx.doi.org/10.1021/acsami.2c13643en_US
dc.source.titleACS Applied Materials and Interfacesen_US
dc.subjectAntistaticen_US
dc.subjectCharge transfer complexesen_US
dc.subjectContact electrificationen_US
dc.subjectPolydimethylsiloxaneen_US
dc.subjectCompositesen_US
dc.subjectPolymersen_US
dc.titleOrganic charge transfer cocrystals as additives for dissipation of contact charges on polymersen_US
dc.typeArticleen_US

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