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090			_aB-20409
245	1	0	_aCharacterization of natural dyes on ZnO and TiO2 thin films for applications in DSSC
490	0		_vJournal of Materials Science: Materials in Electronics, 34(11), p.980, 2023
520	3		_aIn this work, we present a comparative study of two types of dye-sensitized solar cells (DSSCs)fabricated using natural dyes extracted from Achiote seeds, Brazil and Taray bark. The dyes were impregnated in ZnO and TiO2 thin films. ZnO, TiO2, ZnO/dyes and TiO2/dyes structures were characterized by X-ray diffraction (XRD), atomic force microscopy (AFM), ultraviolet-visible spectroscopy (UV-Vis), infrared spectroscopy (IR spectroscopy)and current-voltage (I-V)techniques. IR analysis shows that the films impregnated with the dyes show anchoring to them and bands characteristic of COOH and OH functional groups. The results of UV-Vis spectroscopy show that the strongest absorption in the visible region is provided by dyes of the Achiote seeds, bark of Brazil and bark of Taray. The performance of the DSSCs device was evaluated to determine the influence of ZnO/dyes and TiO2/dyes photoanodes with platinum photocathodes. The manufactured DSSCs showed a conversion efficiency for TiO2 of ??=?3.65, 3.63 and 3.98 percent and for ZnO-based DSSCs of ? ?=?3.09, 2.81 and 2.54 percent for Achiote seed, Brazilian bark and Taray bark, respectively
700	1	2	_aFlota Robledo, A. F.
700	1	2	_aPantoja Enríquez, J. P.
700	1	2	_aMeza Avendaño, C. M.
700	1	2	_aPérez Hernández, G. P.
700	1	2	_aJuárez Gutiérrez, P. J.
856	4	0	_uhttps://drive.google.com/file/d/1D9ZsHLgHPcFtvCslu6-E1hLUpnSlEX6r/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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