STUDY AND CHARACTERIZATION OF POLYTHIOPHENE DERIVATIVES USING THE LANGMUIR-SCHAEFER TECHNIQUE

Published in 12/12/2023 - ISBN: 978-65-272-0088-8

Paper Title
STUDY AND CHARACTERIZATION OF POLYTHIOPHENE DERIVATIVES USING THE LANGMUIR-SCHAEFER TECHNIQUE
Authors
  • Nyara Duarte Ferreira
  • Marcelo Soares Borro
  • Maria Luisa Braunger
  • Deuber Lincon da Silva Agostini
  • Clarissa de Almeida Olivati
Modality
Pôster
Subject area
Síntese e caracterização de materiais
Publishing Date
12/12/2023
Country of Publishing
Brasil
Language of Publishing
Inglês
Paper Page
https://www.even3.com.br/anais/workshop-do-ineo-2023/612690-study-and-characterization-of-polythiophene-derivatives-using-the-langmuir-schaefer-technique
ISBN
978-65-272-0088-8
Keywords
polythiophene, Langmuir-Schaefer, thin films
Summary
Poly(3-alkylthiophene) derivatives (P3ATs) are some of the most usual conductive polymers used to make devices such as solar cells, gas sensors or light emitting diodes. The main characteristics that make these derivatives advantageous for the manufacture of devices are the high charge mobility, solid state properties and good thermal stability. These derivatives are separated into regioregulars and regiorandons, defined by the percentage of head-to-tail (HT) bonds present in the side chains, impacting on polymer properties such as crystallinity level, electronic structure, order of nanostructures and charge transport. P3ATs can be transferred to a solid substrate through some techniques such as Langmuir-Blodgett (LB) and Langmuir-Schaefer (LS), allowing molecular assemblies of materials with proper film alignment, enabling the fabrication of a device [1]. The polythiophene derivatives used in this work are the regioregular forms of poly(3-octylthiophene-2,5-diyl) (P3OT), poly(3-hexylthiophene-2,5-diyl) (P3HT), poly(3- butylthiophene-2,5-diyl) (P3BT) and poly(3-decylthiophene-2,5-diyl) (P3DT). First, a solution was prepared for each polymer using chloroform as solvent, at a concentration of 0.2 mg/ml. The solution was spread onto the aqueous sub-phase of the Langmuir trough with the intention of obtaining the pressure-area isotherm curve for each material. After obtaining the ideal pressure for deposition, the monolayer was transferred to a glass substrate using the Langmuir-Schaefer (LS) technique, seeking the optical characterization of the material using the Cary 100 UV-Vis spectrophotometer. Through the optical characterization, it was possible to analyze the film growth in relation to the linearity between layers. With the samples deposited on glass, the profilometry measurement was performed to obtain the thickness of the samples of each material. In the next step of this research, the deposition of the materials will be carried out using the LS technique on a gold interdigitated electrode substrate (IDE_Au) for the electrical characterization of these materials. Acknowledgments: The authors thank the financial support from CAPES (Finance Code 001), CAPES-PrIntUNESP, CNPq, FAPESP and INEO (FAPESP/CNPq/INCT nº 2014/50869-6). References: [1] Lucas K M Roncaselli et al 2019 Nanotechnology 30 325703
Title of the Event
Workshop do INEO 2023
City of the Event
Nazaré Paulista
Title of the Proceedings of the event
Anais do Workshop INEO 2023
Name of the Publisher
Even3
Means of Dissemination
Meio Digital
DOI
LinkGet DOI

How to cite

FERREIRA, Nyara Duarte et al.. STUDY AND CHARACTERIZATION OF POLYTHIOPHENE DERIVATIVES USING THE LANGMUIR-SCHAEFER TECHNIQUE.. In: Anais do workshop INEO 2023. Anais...Nazaré Paulista(SP) Hotel Estância Atibainha, 2023. Available in: https//www.even3.com.br/anais/workshop-do-ineo-2023/612690-STUDY-AND-CHARACTERIZATION-OF-POLYTHIOPHENE-DERIVATIVES-USING-THE-LANGMUIR-SCHAEFER-TECHNIQUE. Access in: 15/06/2024

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