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dc.contributor.authorYilmaz, Mehme
dc.contributor.authorErkartal, Mustafa
dc.contributor.authorOzdemir, Mehmet
dc.contributor.authorSen, Unal
dc.contributor.authorUsta, Hakan
dc.contributor.authorDemirel, Gokhan
dc.descriptionThis work was partially supported by Gazi University (Grant No: 05/2015-19) and the Scientific and Technological Research Council of Turkey (TUBITAK) grant number 114M226. G.D. and H.U. acknowledge support from the Turkish Academy of Sciences, Distinguished Young Scientist Award (TUBA-GEBIP).en_US
dc.description.abstractThe design and development of three-dimensional (3D) nanostructures with high surface-enhanced Raman scattering (SERS) performances have attracted considerable attention in the fields of chemistry, biology, and materials science. Nevertheless, electrospraying of organic smalt molecules on low-cost flexible substrates has never been studied to realize large-scale SERS-active platforms. Here, we report the facile, efficient, and low-cost fabrication of-Stable and reproducible Au-coated electrosprayed organic semiconductor films (Au@BDY-4TEBDY) on flexible regular aluminum foil at a large scale (5 cm X 5 cm) for practical SERS and catalytic applications. To this end, a well-designed-acceptor-donor-atceptor-type solution-processable molecular semiconductor, BDY-4T-BDY, developed by our group, is used because of its advantageous structural and electrical properties. The morphology of the electrosprayed organic film changes by solution concentration, and two different 3D morphologies with out-of-plane features are obtained. Highly uniform dendritic nanoribbons with sharp needle-like tips and vertically oriented nanoplates (similar to 50 nm thickness) are achieved when electrospraying solution concentrations of 240 and 253% w/v.(mgimL) are, respectively, used. When these electrosprayed organic films are coated with a nanoscopic thin (30 nm) Au layer, the resulting Au@BDY-4T-BDY platforms demonstrate remarkable SERS enhancement factors up to 1.7 X 10(6) with excellent Raman signal reproducibility (relative standard deviation <= 0.13) for methylene blue over the entire film. Finally, Au@BDY-4T-BDY films showed good catalytic activity for the reduction of 4-nitrophenol to 4-aminophenol with rate constants of 1.3 X 10(-2) and 9.2 X 10(-3) min(-1). Our results suggest that electrospraying of rationally designed organic semiconductor molecules on flexible substrates holds great promise to enable low-cost, solution-processed, SERS-active platforms.en_US
dc.description.sponsorshipGazi University 05/2015-19 Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) 114M226 Turkish Academy of Sciencesen_US
dc.publisherAMER CHEMICAL SOC1155 16TH ST, NW, WASHINGTON, DC 20036en_US
dc.subjectsmall moleculeen_US
dc.subjectorganic semiconductoren_US
dc.subjectSurface-enhanced Raman scatteringen_US
dc.titleThree-Dimensional Au-Coated Electrosprayed Nanostructured BODIPY Films on Aluminum Foil as Surface-Enhanced Raman Scattering Platforms and Their Catalytic Applicationsen_US
dc.contributor.departmentAGÜ, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümüen_US
dc.contributor.institutionauthorErkartal, Mustafa
dc.contributor.institutionauthorOzdemir, Mehmet
dc.contributor.institutionauthorUsta, Hakan
dc.identifier.volumeVolume 9 Issue 21 Page 18199-18206en_US
dc.relation.publicationcategoryMakale - Uluslararası - Editör Denetimli Dergien_US

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