Effect of the Performance of Lignin Into the Matrix of the TiO2 with Application on DSSCs

Abstract Founding new materials and structures for solar cells is a challenge in the photovoltaic field. This work evaluated the effect of the lignin in the photovoltaic activity by compounding with TiO2/lignin as photoanode for the dye sensitized solar cells (DSSC’s). Hybrid films (TiO2/lignin) wit...

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Bibliographic Details
Published in:Floresta e ambiente 2022-01, Vol.29 (3)
Main Authors: Teixeira, Edwalder Silva, Nunes, Vanja Fontenele, Pinho, Diego Caitano, Maia Júnior, Paulo Herbet França, Lima, Francisco Marcone, Souza Filho, Men de Sá Moreira de, Almeida, Ana Fabíola Leite, Freire, Francisco Nivaldo Aguiar
Format: Article
Language:English
Subjects:
DSSCs
Lignin
PLANT SCIENCES
Spin coating
TiO2
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Summary:Abstract Founding new materials and structures for solar cells is a challenge in the photovoltaic field. This work evaluated the effect of the lignin in the photovoltaic activity by compounding with TiO2/lignin as photoanode for the dye sensitized solar cells (DSSC’s). Hybrid films (TiO2/lignin) with different concentrations of lignin (5, 10 and 15%) were deposited by spin coating over commercial TiO2 thin films. The cells were sandwich assembled. The characterizations were done through analysis of absorbance, band gap, x-ray diffraction, morphological and electrical. The lignin at 15% reduced the TiO2 band gap from 3.66 to 2.84 eV, favoring the short current density to 11.06 mA/cm2 and efficiency of 4.65%, an increase of 103.95% compared to the TiO2 structure without lignin.
ISSN:1415-0980
2179-8087
2179-8087
DOI:10.1590/2179-8087-floram-2022-0013