Journal of Photochemistry and Photobiology A: Chemistry 357 (2018) 30–35 Contents lists available at ScienceDirect Journal of Photochemistry and Photobiology A: Chemistry journal home page : www.elsevier.com/locat e/jphotochem Photoluminescence of zinc oxide mesostructured ﬁlms doped with Rhodamine 6G Luca Malfatti, Kazumasa Suzuki, Alois Erker, Yu Jang, Plinio Innocenzi* Laboratorio di Scienza dei Materiali e Nanotecnologie, Dipartimento di Chimica e Farmacia, Università di Sassari, CR INSTM, Via Vienna 2, 07041, Sassari, Italy A R T I C L E I N F O A B S T R A C T Article history: The photoluminescence of thin ﬁlms doped with ﬂuorescent dyes, such as rhodamine 6G (Rh6G), is Received 11 November 2017 Received in revised form 25 January 2018 strongly dependent on their concentration and aggregation states. We have doped ZnO dense and Accepted 26 January 2018 mesostructured thin ﬁlms with different concentrations of Rh6G. The ﬁlms have been prepared via Available online 6 February 2018 sol-gel using a block copolymer as template to obtain the mesostructured samples. Rh6G at high concentrations aggregates preferentially as not-ﬂuorescent H-dimers in the dense samples and Keywords: ﬂuorescent J-dimers in the mesostructured ﬁlms. The dense ZnO coatings show a shift of the typical Sol-gel
Journal of Photochemistry and Photobiology A: Chemistry – Elsevier
Published: Apr 15, 2018
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