DSSCs based on ZnO photoelectrodes sensitized with natural dyes extracted from the bark of Brazil and Taray

A. G. Flota Robledo ,J. Pantoja Enríquez ,C. A. Meza Avendaño ,G. Pérez Hernández ,P. J. Juárez Gutiérrez

doi:10.15251/JOBM.2022.142.29

A. G. Flota Robledo

J. Pantoja Enríquez

C. A. Meza Avendaño

G. Pérez Hernández

P. J. Juárez Gutiérrez

a Institute for Research and Innovation in Renewable Energies, University of

Sciences and Arts of Chiapas, Tuxtla Gutiérrez, Chiapas, 39039, Mexico

b Academic Division of Engineering and Architecture, Universidad Juárez

Autónoma de Tabasco, Villahermosa, Tabasco, 86040, Mexico

Journal of Optoelectronic and Biomedical Materials 2022, 14(2),29-34; https://doi.org/10.15251/JOBM.2022.142.29

Submitted：Jan 12, 2022

Accepted：Apr 06, 2022

Published：Apr 01, 2022

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Cite

A. G. Flota Robledo ,J. Pantoja Enríquez ,C. A. Meza Avendaño ,G. Pérez Hernández ,P. J. Juárez Gutiérrez . (2022). Journal of Optoelectronic and Biomedical Materials. DSSCs based on ZnO photoelectrodes sensitized with natural dyes extracted from the bark of Brazil and Taray, 14(2), ,29-34. https://doi.org/10.15251/JOBM.2022.142.29

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Abstract

We report the extraction of natural dyes from Brazil and Taray bark, the impregnation of these dyes in thin films of ZnO synthesized via sol-gel method and deposited by Doctor Blade and finally the fabrication of dye sensitized solar cells (DSSC). The ZnO/dyes structures were characterized using UV-Visible and infrared spectroscopy. The analysis of the infrared spectra shows that the semiconductors impregnated with the extracted dyes exhibit the characteristic of dye anchorage in ZnO. The photovoltaic performance and efficiency of the assembled DSSCs was evaluated.

Keywords

DSSC

natural dyes

ZnO