Annihilation of the triplet excitons in the nanoporous glass matrices

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dc.contributor.author Afanasyev, D.A.
dc.contributor.author Ibrayev, N.Kh.
dc.contributor.author Saletsky, A.M.
dc.contributor.author Starokurov, Y.V.
dc.contributor.author Gun’ko, V.M.
dc.contributor.author Mikhalovsky, S.V.
dc.date.accessioned 2017-01-10T05:31:32Z
dc.date.available 2017-01-10T05:31:32Z
dc.date.issued 2013-04
dc.identifier.citation Annihilation of the triplet excitons in the nanoporous glass matrices / D. A. Afanasyev[a.o.]//Journal ofLuminescence. - Amsterdam: Elsevier science bv. - 2013. - Vol.136. - p.358-364. - ISSN 0022-2313
dc.identifier.issn 0022-2313
dc.identifier.uri http://rep.ksu.kz/handle/data/646
dc.description.abstract The spectraandkineticsoffluorescencedecayof1,2-benzanthracene(1,2-BA)molecularclusters adsorbedinnanoporousborosilicateglasseswereinvestigated.Ithasbeenshownthatthetypeofthe decaykineticsofdelayedfluorescenceisdeterminedbytheannihilationoftripletexcitonsincrystalline andpercolationclusters.Theinfluenceofanexternalmagneticfieldontheannihilationrateconstantof tripletexcitonsintheadsorbed1,2-BAmoleculeshasbeenstudied.Theresponseofthemolecular clusterstothemagneticfieldstronglydependsontemperature,poresizeandtimescaleofthe observation.Clusterswiththecrystalstructuredominateinthedecaykineticsoftriplet–triplet annihilation(TTA)anddelayedfluorescenceintheinitialmicrosecondperiodoftimeafterexcitation. Amorphousclustersdeterminetheformofdecaykineticsofdelayedfluorescenceinthemillisecond range.Theincreaseintheporesizeandconcentrationoftheadsorbateleadtothedominanceof crystallinecomponents.Theresultspresentedherecanbeusedtodeveloptechniquesforprobingthe structureoftheadsorbedlayerinnanoporoussystemsexaminingtheeffectofanexternalmagneticfield on theannihilationdelayedfluorescence(ADF)kinetics. ru_RU
dc.language.iso en ru_RU
dc.publisher Elsevier science bv ru_RU
dc.relation.ispartofseries Journal ofLuminescence;Vol.136.
dc.subject Delayed fluorescence ru_RU
dc.subject Triplet–triplet annihilation ru_RU
dc.subject Magnetic fieldeffect ru_RU
dc.subject Porous glasses ru_RU
dc.subject Molecular clusters ru_RU
dc.title Annihilation of the triplet excitons in the nanoporous glass matrices ru_RU
dc.type Article ru_RU


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