Related Experiment Video
Updated: Jun 22, 2026

Influence of Hybrid Perovskite Fabrication Methods on Film Formation, Electronic Structure, and Solar Cell Performance
Published on: February 27, 2017
Spectroscopic and morphological properties of divinylbenzoxazolylbiphenyl thin films
Alexander V Kukhta1, Iryna N Kukhta, Eduard E Kolesnik
1B.I.Stepanov Institute of Physics of the National Academy of Sciences of Belarus, Nezalezhnastsi Ave. 68, 220072 Minsk, Belarus. Kukhta@imaph.bas-net.by
Abstract:
The thin organic films based on 4,4'-bis-[(Z)-1-(1,3-benzoxazol-2-yl-2-ethenyl)]biphenyl and its partly fluorinated derivatives are studied. Absorption, luminescence, and excitation spectra, luminescence decay and film morphology were found to depend sensitively on the changes in molecule structure, nature and temperature of the substrate, as well as the thermovacuum deposition rate, being the origins of bad reproducibility of the optical properties of such films. Molecular aggregation with chromophore dipoles arranged parallel to each other has been observed in absorption and luminescence spectra. The fluorescence characteristics can be explained by the combination of radiation of aggregated and non-aggregated molecules. The main characteristics of the molecules under study are calculated using DFT approach. The unusual behaviour of photodegradation in fluorinated film is found.
More Related Videos
08:18Synthesis and Characterization of High c-axis ZnO Thin Film by Plasma Enhanced Chemical Vapor Deposition System and its UV Photodetector Application
Published on: October 3, 2015
06:49In situ Grazing Incidence Small Angle X-ray Scattering on Roll-To-Roll Coating of Organic Solar Cells with Laboratory X-ray Instrumentation
Published on: March 2, 2021
Related Concept Videos
NMR Spectroscopy of Benzene Derivatives
UV–Vis Spectroscopy of Conjugated Systems
One of the factors influencing λmax is the extent of conjugation in the...
UV–Vis Spectroscopy: Molecular Electronic Transitions
UV–Vis Spectroscopy: Woodward–Fieser Rules