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Synthesis and characterization of two new TiO2-containing benzothiazole-based imine composites for organic device applications

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cris.lastimport.scopus2024-02-12T20:32:25Z
dc.abstract.enThe effect of the presence of titanium dioxide in two new imines, (E,E)-(butane-1,4-diyl)bis(oxybutane-4,1-diyl) bis(4-{[(benzo[d][1,3]thiazol-2-yl)methylidene]amino}benzoate) (SP1) and (E)-N-[(benzo[d][1,3]thiazol-2-yl)methylidene]-4-dodecylaniline (SP2), on the properties and stability of imine:TiO2 composites for organic device applications were examined. The investigated titanium dioxide (in anatase form, obtained via the sol–gel method) exhibited a surface area of 59.5 m2/g according to Brunauer–Emmett–Teller theory, and its structure is a combination of both meso- and microporous. The average pore diameter calculated by the Barrett–Joyner–Halenda method was 6.2 nm and the cumulative volume of pores was 0.117 m3/g. The imine SP1 exhibited columnar organization (Col), while SP2 revealed a hexagonal columnar crystalline phase (Colhk). The imine:TiO2 mixtures in various weight ratio (3:0, 3:1, 3:2, 3:3) showed a lower energy gap and HOMO–LUMO energy levels compared to pure TiO2. This implies that TiO2 provides not only a larger surface area for sensitizer adsorption and good electron collection, but also causes a shift of the imine energy levels resulting from intermolecular interaction. Also the temperature of the phase transition was slightly affected with the increase of TiO2 concentration in imine-based composites. The changes observed in the Fourier transform middle-infrared absorption (FT-MIR) spectra confirmed the significant influence of TiO2 on structural properties of both investigated imines. Similar interactions of oxygen vacancies existing on the TiO2 surface with SP1 and SP2 were observed. The imine:TiO2 mixtures showed good air stability and reusability, which demonstrates its potential for organic device applications.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorGórska, Natalia
dc.contributor.authorHreniak, Agnieszka
dc.contributor.authorRóżycka, Anna
dc.contributor.authorMarzec, Monika
dc.contributor.authorFilapek, Michał
dc.contributor.authorDąbczyński, Paweł
dc.contributor.authorMalinowski, Marek
dc.contributor.authorRysz, Jakub
dc.contributor.authorFryń, Patryk
dc.contributor.authorPociecha, Damian
dc.contributor.authorBOGDANOWICZ, Krzysztof
dc.contributor.authorIWAN, Agnieszka
dc.date.accessioned2024-01-26T09:26:23Z
dc.date.available2024-01-26T09:26:23Z
dc.date.copyright2018-02-26
dc.date.issued2018
dc.description.accesstimeAT_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number1
dc.description.versionFINAL_PUBLISHED
dc.description.volume9
dc.identifier.doi10.3762/BJNANO.9.67
dc.identifier.issn2190-4286
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/121280
dc.identifier.weblinkhttps://www.beilstein-journals.org/bjnano/articles/9/67
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofBeilstein Journal of Nanotechnology
dc.relation.pages721–739
dc.rightsOther
dc.sciencecloudnosend
dc.subject.enazomethines
dc.subject.encomposites
dc.subject.enHOMO-LUMO
dc.subject.enimines
dc.subject.enorganic devices
dc.subject.enTiO2
dc.titleSynthesis and characterization of two new TiO2-containing benzothiazole-based imine composites for organic device applications
dc.typeJournalArticle
dspace.entity.typePublication