Synthesis, characterization and photovoltaic studies of oligo(acriflavine) via chemical oxidative polymerization

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dc.authoridKaya, İsmet / 0000-0002-9813-2962
dc.authoridKolcu, Feyza / 0000-0002-2004-8859
dc.contributor.authorKolcu, Feyza
dc.contributor.authorKaya, İsmet
dc.date.accessioned2025-01-27T20:57:47Z
dc.date.available2025-01-27T20:57:47Z
dc.date.issued2017
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe present work reports a simple and inexpensive way for the synthesis of a novel water-soluble conjugated oligo(acriflavine) (OAC). Oligo(acriflavine) was synthesized via chemical oxidative polycondensation by H2O2 (30%) as the oxidant at an optimum reaction temperature of 110 degrees C without use of an additional external template. The chemical structure of the synthesized compound was confirmed by FT-IR, UV-Vis, H-1-NMR and C-13-NMR techniques. Further characterization was employed using, photophysical, electrochemical, photovoltaic thermogravimetric-differential thermal analysis (TG-DTA), fluorescence (PL), cyclic voltammetry (CV) and differential scanning calorimetry (DSC) measurements. The number average molecular weight of the oligomer was found to be 4950 Da with a polydispersity index of 1.18. Photoluminescence (PL) properties of the synthesized materials were determined in solution form. The solvent effect on the optical properties of OAC was studied in selected solvents. The spectral analysis displayed a bicolor emission behavior when OAC solution was irradiated at different wavelengths. The HOMO-LUMO energy levels and electrochemical (E-g') band gap values of OAC were determined by CV measurement. Optical and electrochemical band gaps of OAC with more conjugated structure were lower than for AC. XRD analysis signified that the oligomer was in a semicrystalline form. To further study the morphologic properties of the OAC, Scanning Electron Microscopy (SEM) images were illustrated at different amplifications. It was demonstrated that the structure of OAC was essentially a ladder oligomer with phenazine rings. The best performing photovoltaic cell, based on OAC reached a J(sc) of 0.14 mA cm(-2), a V-oc of 0.37 V, and a FF of 0.50, giving a power conversion efficiency (%eta) of 0.027% under AM 1.5 irradiation (100 mW cm(-2)).
dc.description.sponsorshipCanakkale Onsekiz Mart University scientific research project commission [FBA-2016-710]
dc.description.sponsorshipThe authors thank Canakkale Onsekiz Mart University scientific research project commission for support with the project number (Project Nu.: FBA-2016-710).
dc.identifier.doi10.1039/c6ra28475b
dc.identifier.endpage8984
dc.identifier.issn2046-2069
dc.identifier.issue15
dc.identifier.scopus2-s2.0-85011082308
dc.identifier.scopusqualityQ1
dc.identifier.startpage8973
dc.identifier.urihttps://doi.org/10.1039/c6ra28475b
dc.identifier.urihttps://hdl.handle.net/20.500.12428/26497
dc.identifier.volume7
dc.identifier.wosWOS:000393759900028
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherRoyal Soc Chemistry
dc.relation.ispartofRsc Advances
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectSensitized Solar-Cells
dc.subjectOptoelectronic Devices
dc.subjectDyes
dc.subjectPolymers
dc.subjectPerformance
dc.subjectLight
dc.subjectState
dc.subjectPoly(Quinoline)S
dc.subjectPolyfluorene
dc.subjectPolyaniline
dc.titleSynthesis, characterization and photovoltaic studies of oligo(acriflavine) via chemical oxidative polymerization
dc.typeArticle

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