Nanoscale physics

Influence of the conductive polymer matrix on the structural and optical properties of metalloquinolates and their derivatives.
M. Sypniewska1, E. Gondek2, M. Pokladko-Kowar2, A. Kaczmarek-Kedziera3, A. Apostoluk4, V. Smokal5, R. Szczesny3, B. Derkowska-Zielinska1

1 Institute of Physics, Faculty of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun, Grudziadzka 5, Torun 87-100, Poland 
E-mail:msyp@doktorant.umk.pl
2 Department of Physics, Cracow University of Technology, Podchorążych Str. 1, 30-084 Krakow, Poland; 
3Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, Torun 87-100, Poland 
4 Univ Lyon, INSA Lyon, ECL, CNRS, UCBL, CPE Lyon, INL, UMR5270, 69621 Villeurbanne, France
5 Department of Chemistry, Taras Shevchenko National University of Kyiv, 60 Volodymyrska, 01033, Kyiv, Ukraine 

In this work, we investigated the optical and structural properties of metalloquinolates and their derivatives thin layer. The 8-hydroxyquinoline derivatives are a group of compounds with rich and varied activity. These compounds contain the 8-hydroxyquinoline moiety, which is consist of two rings system: carbocyclic and pyridine rings with hydroxyl group substituted at position-8 [1]. The 8-hydroxyquinolines are good chelating agents that form complexes with a wide variety of metal ions such as Zn2+, Co2+ and Al3+ due to the proximity of the hydroxyl group to the heterocyclic nitrogen [2]. These properties make the 8-hydroxyquinoline derivatives (i.e. metalloquinolates with/without a styryl fragment) a privileged structure with various physical and chemical properties. 
The goal of this work is to investigate the optical and morphological properties of polymer matrix thin layers containing methylquinoline (Meq) and styrylquinoline (STq) by using UV-Vis and IR spectroscopies, as well as SEM technique. Photoluminescence (PL) properties of fabricated films were also analyzed. Layers were deposited on silicon substrate using the spin-coating method. The obtained results will consist of the systematic view of the photo-physical properties for Meq and innovative photoactive materials with a styrilquinoline moiety.

1. Al-Busafi S.N., Suliman F.E., Al-Alawi Z.R., 8-Hydroxyquinoline and its derivatives: Synthesis and applications // Res Rev J Chem.-2014.-3.-P.1-10. 
2. Shoji E., Miyatake K., Hlil A., Hay A., et al., Immiscible polymers in double spin-coated electroluminescent devices containing phenylsubstituted Tris (8-Hydroxyquinoline) aluminum derivatives soluble in a host polymer// J Polym Sci Part A Polym Chem.-2003.-41.-P.3006-3016.