Polythiophene (PTh) and PTh/GO thin films for potential application in solar cells
José Martínez a, Fernanda Retana a, Thelma Serrano a, Idalia Gómez a
a Universidad Autónoma de Nuevo León, Facultad de Ciencias Químicas, Laboratorio de Materiales I, Av. Pedro de Alba s/n, Ciudad Universitaria, C.P. 66455, San Nicolás de los Garza, Nuevo León, México
Poster, Idalia Gómez, 203
Publication date: 6th February 2024

Lately, Graphene has emerged as an option material with a lot of interest in the scientific community due to its exceptional electric, thermal and mechanical properties. This carbon allotrope is as thick as a single carbon atom and could improve the conductive properties of a simple conductive host film by the correct incorporation of the particles on its matrix. In this paper, we present the results of the synthesis of polythiophene/graphene composite by means of electrochemical route. The first step was the top-down chemical synthesis of graphene oxide (GO) with graphite as starting material. The second step was the polythiophene synthesis using electrochemical methods to obtain the polymer, using as working electrode a glass substrate covered with ITO (indium-tin-oxide). The films were prepared with polythiophene (PTh) and graphene oxide (GO), the GO present in the film was then reduced to mainly have graphene (G) present. The results were analyzed to check the film growth and characteristics with profilometry and infrared spectroscopy, Field-Emission Scanning Electronic Microscopy (FESEM) --and electrochemical methods known as Cyclic voltammetry and Chronoamperometry. The XRD results shown the obtention of reduced oxide graphene, and the FESEM allows to observe the films of the composite obtained, by means of the voltmammetry and chronoamperometry was possible to induce the electrochemical phenomena involved

Authors express their gratitude to Faculty of Chemical Sciences UANL and CONAHCYT for the support for this research.

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