Improvement of intramolecular charge transfer within a donor-acceptor blend by doping novel synthesized benzothiadiazole small molecules in solid state

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dc.contributor.authorDinçalp H.
dc.contributor.authorMurat G.
dc.contributor.authorIçli S.
dc.date.accessioned2024-07-22T08:17:20Z
dc.date.available2024-07-22T08:17:20Z
dc.date.issued2014
dc.description.abstractThree electron-deficient small molecules based on 2,1,3-benzothiadiazole (BTD) units namely, 4,7-bis(3-methoxyphenyl)-2,1,3-benzothiadiazole (BT1), (3-{7-[3-(dimethylamino)phenyl]-2,1,3-benzothiadiazole-4-yl}phenyl) dimethylamine (BT2) and 3,3′-(2,1,3-benzothiadiazole-4,7-dyl)dianiline (BT3) were synthesized and their photophysical properties were investigated systematically to understand their potential usage in ternary organic solar cells (OSCs) as additive material to enhance the cell efficiency. All these molecules show broad absorption bands in 350-750 nm on glass substrate and their optical band gaps were calculated to be around 2.50-2.80 eV. BTD fluorescence dynamics were measured in polymer:BT1:fullerene blends with varying emission wavelengths of active layer. Fluorescence emission and time resolved measurements indicated photoinduced energy shift from BT1 dye to fullerene and also from polymer to BT1 dye upon excitation of the active layer. © 2014 Elsevier B.V. All rights reserved.
dc.identifier.DOI-ID10.1016/j.optmat.2014.04.019
dc.identifier.issn09253467
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/17034
dc.language.isoEnglish
dc.publisherElsevier B.V.
dc.subjectCharge transfer
dc.subjectEmission spectroscopy
dc.subjectEnergy gap
dc.subjectFluorescence
dc.subjectFullerenes
dc.subjectMolecules
dc.subjectOrganic solar cells
dc.subjectPolymer blends
dc.subjectSolar cells
dc.subjectSubstrates
dc.subjectBenzothiadiazoles
dc.subjectCharge separations
dc.subjectOrganic photovoltaics
dc.subjectSolid state emission
dc.subjectTime-resolved emission spectra
dc.subjectSynthesis (chemical)
dc.titleImprovement of intramolecular charge transfer within a donor-acceptor blend by doping novel synthesized benzothiadiazole small molecules in solid state
dc.typeArticle

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