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

Nyara Duarte Ferreira; Marcelo Soares Borro; Maria Luisa Braunger; Deuber Lincon da Silva Agostini; Clarissa de Almeida Olivati

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Submission

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

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: 26/12/2024