Cargando…

Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies

With the aim of verifying the optical properties of the systems formed by poly(3-methylthiophene) (P3MT) and poly(3-octylthiophene) (P3OT) on platinum (Pt) for use in organic photovoltaic device applications, electrochemical preparations of different interfaces with poly(3-alkylthiophenes) (P3ATs),...

Descripción completa

Detalles Bibliográficos
Autores principales: Koenig, Leandro Rodrigues, Batista, Aline Domingues, Renzi, Wesley, de Santana, Henrique
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9136345/
https://www.ncbi.nlm.nih.gov/pubmed/35647356
http://dx.doi.org/10.1016/j.heliyon.2022.e09515
_version_ 1784714159405924352
author Koenig, Leandro Rodrigues
Batista, Aline Domingues
Renzi, Wesley
de Santana, Henrique
author_facet Koenig, Leandro Rodrigues
Batista, Aline Domingues
Renzi, Wesley
de Santana, Henrique
author_sort Koenig, Leandro Rodrigues
collection PubMed
description With the aim of verifying the optical properties of the systems formed by poly(3-methylthiophene) (P3MT) and poly(3-octylthiophene) (P3OT) on platinum (Pt) for use in organic photovoltaic device applications, electrochemical preparations of different interfaces with poly(3-alkylthiophenes) (P3ATs), synthesized both with 18 °C and without temperature control, were compared. These interfaces were prepared both as blends (Pt/P3MT:P3OT) and as layered films (Pt/P3MT/P3OT and Pt/P3OT/P3MT). Electrochemical impedance spectroscopy (EIS) was used to characterize the systems, and based on Bode-Phase diagrams, it was possible to monitor the stabilization of radical cation and dication segments of the thiophene ring. The findings corroborated previous studies by electrochemical spectroscopy and using in situ Raman spectroscopy under the same experimental conditions. We were able to verify the effects of experimental variables, such as synthesis temperature and different kinds of deposition. Temperature was found to be an extremely important factor in synthesis, since films synthesized at 18 °C favored the stabilization of radical cation segments in the polymer matrix, and layered deposition also favored the stabilization of these segments, since the layer closest to the electrode can act as an induction layer for the stability of radical cation segments in the system. Photoluminescence spectroscopy was used to verify the optical properties of the interfaces, in which occur the contributions of three segments in the P3ATs matrix. Thus, it has been demonstrated through photoluminescence decay time that the relative amount of radical cation and dication segments in the polymer matrix affects the lifetime of these segments in the different materials prepared, due to emission effects for these systems.
format Online
Article
Text
id pubmed-9136345
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-91363452022-05-28 Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies Koenig, Leandro Rodrigues Batista, Aline Domingues Renzi, Wesley de Santana, Henrique Heliyon Research Article With the aim of verifying the optical properties of the systems formed by poly(3-methylthiophene) (P3MT) and poly(3-octylthiophene) (P3OT) on platinum (Pt) for use in organic photovoltaic device applications, electrochemical preparations of different interfaces with poly(3-alkylthiophenes) (P3ATs), synthesized both with 18 °C and without temperature control, were compared. These interfaces were prepared both as blends (Pt/P3MT:P3OT) and as layered films (Pt/P3MT/P3OT and Pt/P3OT/P3MT). Electrochemical impedance spectroscopy (EIS) was used to characterize the systems, and based on Bode-Phase diagrams, it was possible to monitor the stabilization of radical cation and dication segments of the thiophene ring. The findings corroborated previous studies by electrochemical spectroscopy and using in situ Raman spectroscopy under the same experimental conditions. We were able to verify the effects of experimental variables, such as synthesis temperature and different kinds of deposition. Temperature was found to be an extremely important factor in synthesis, since films synthesized at 18 °C favored the stabilization of radical cation segments in the polymer matrix, and layered deposition also favored the stabilization of these segments, since the layer closest to the electrode can act as an induction layer for the stability of radical cation segments in the system. Photoluminescence spectroscopy was used to verify the optical properties of the interfaces, in which occur the contributions of three segments in the P3ATs matrix. Thus, it has been demonstrated through photoluminescence decay time that the relative amount of radical cation and dication segments in the polymer matrix affects the lifetime of these segments in the different materials prepared, due to emission effects for these systems. Elsevier 2022-05-23 /pmc/articles/PMC9136345/ /pubmed/35647356 http://dx.doi.org/10.1016/j.heliyon.2022.e09515 Text en © 2022 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Research Article
Koenig, Leandro Rodrigues
Batista, Aline Domingues
Renzi, Wesley
de Santana, Henrique
Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies
title Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies
title_full Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies
title_fullStr Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies
title_full_unstemmed Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies
title_short Effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies
title_sort effects on the emission of different interfaces formed between poly(3-methylthiophene) and poly(3-octylthiophene): electrochemical impedance and photoluminescence spectroscopy studies
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9136345/
https://www.ncbi.nlm.nih.gov/pubmed/35647356
http://dx.doi.org/10.1016/j.heliyon.2022.e09515
work_keys_str_mv AT koenigleandrorodrigues effectsontheemissionofdifferentinterfacesformedbetweenpoly3methylthiopheneandpoly3octylthiopheneelectrochemicalimpedanceandphotoluminescencespectroscopystudies
AT batistaalinedomingues effectsontheemissionofdifferentinterfacesformedbetweenpoly3methylthiopheneandpoly3octylthiopheneelectrochemicalimpedanceandphotoluminescencespectroscopystudies
AT renziwesley effectsontheemissionofdifferentinterfacesformedbetweenpoly3methylthiopheneandpoly3octylthiopheneelectrochemicalimpedanceandphotoluminescencespectroscopystudies
AT desantanahenrique effectsontheemissionofdifferentinterfacesformedbetweenpoly3methylthiopheneandpoly3octylthiopheneelectrochemicalimpedanceandphotoluminescencespectroscopystudies