Morphology and molecular arrangement of perylene-3,4,9,10-(n-pentylester) in thin layers obtained by zone-casting.
Liquid-crystalline perylene-3,4,9,10-tetra-(n-pentylester) zone-casted on hydrophilic glass substrates forms characteristic belt-like structures which are observed under optical microscope and atomic force microscope. Polarised Raman scattering spectra reveal the presence of anisotropic alignment of the molecules inside the obtained structures. Moreover, the absorption and fluorescence spectra confirm molecular aggregation in the belt-like structures. The research shows, that the belt-like structures are created by columns of molecules with the edge-on alignment on the glass substrate. Such organisation of the molecules is confirmed by spectroscopic methods. These structures can be interesting from the point of view of organic electronics.
Faculty of Technical Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland. Electronic address: adrian.adamski@put.poznan.pl.
Adrian
A
Adamski
Faculty of Technical Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland. Electronic address: ariadna.nowicka@put.poznan.pl.
Ariadna B
AB
Nowicka
Institute of Molecular Physics, Polish Academy of Sciences, Mariana Smoluchowskiego 17, 60-179 Poznań, Poland. Electronic address: barszcz@ifmpan.poznan.pl.
Bolesław
B
Barszcz
Faculty of Technical Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland. Electronic address: miroslaw.szybowicz@put.poznan.pl.
Mirosław
M
Szybowicz
Faculty of Technical Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland. Electronic address: emilia.z.piosik@doctorate.put.poznan.pl.
Emilia
E
Piosik
Faculty of Technical Physics, Poznan University of Technology, Piotrowo 3, 60-965 Poznań, Poland. Electronic address: eryk.wolarz@put.poznan.pl.
Eryk
E
Wolarz
Absorption; Fluorescence; Molecular aggregation; Perylene-tetra-alkylester derivatives; Raman spectroscopy; Zone-casting