Inter- and intrachain transition analyses by photoluminescence and Raman Spectroscopy of electrochemically synthesized P3OT films

In this work, we report the synthesis and an optical study of thin films of poli (3-octiltiofeno) (P3OT). Our samples were prepared by the electrochemical technique, cyclic voltammetry. The P3OT films were synthetized on a conductive substrate of fluoride-doped tin oxide (FTO) through the oxidation...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2020-05, Vol.31 (9), p.6629-6635
Main Authors: Nascimento, Cássio Araújo, Schura, Aleffe Bruno, Chagas, Edson Ferreira, Ramos, Romildo Jerônimo, de Santana, Henrique, Marletta, Alexandre, Therézio, Eralci Moreira
Format: Article
Language:English
Subjects:
Acetonitrile
Characterization and Evaluation of Materials
Chemistry and Materials Science
Materials Science
Optical and Electronic Materials
Oxidation
Photoluminescence
Quinones
Raman spectroscopy
Spectrum analysis
Substrates
Thickness
Thin films
Tin oxides
Voltammetry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this work, we report the synthesis and an optical study of thin films of poli (3-octiltiofeno) (P3OT). Our samples were prepared by the electrochemical technique, cyclic voltammetry. The P3OT films were synthetized on a conductive substrate of fluoride-doped tin oxide (FTO) through the oxidation of the monomer in the electrolytic acetonitrile solution of Tetrafluoroborate of Tetraethylammonium. The thickness of the film produced is dependent on the number of voltammetric cycles. The UV–Vis measurements, as expected, demonstrate the dependence of the intensity of absorption on the thickness of the films. The photoluminescence (PL) spectra of our films show the presence of two different contributions attributed to the quinone and pristine structures. Furthermore, the PL spectra present a contribution associated with vibrational modes (non-radiatives). These optical actives vibrational modes were explained by Raman spectroscopy measurements
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-020-03218-9