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Fabrication and Enhanced Performance Evaluation of TiO2@Zn/Al-LDH for DSSC Application: The Influence of Post-Processing Temperature

Author name : ALTAF HUSSAIN . . RAJPAR
Publication Date : 2024-05-14
Journal Name : Nanomaterials

Abstract

A sequence of dye-sensitized solar cells is proposed, utilizing TiO2@Zn/Al-layered double hydroxide (LDH) as their starting materials, in which Ruthenizer N719 was used as a photon absorber. The anticipated system was turned into sheet-like TiO2@mixed metal oxide (MMO) via post-processing treatment. The crystal quality indicated a relation to power conversion efficiency (PCE); this was combined with a comparable morphology profile. In detail, the optimum DSSC device exhibited average sheet-like thickness and a dye loading amount of 43.11 nm and 4.28 ×10−3 mM/cm−2, respectively. Concurrently, a considerable PCE enhancement of the optimum
DSSC device (TiO2@MMO-550◦) was attained compared to pristine MMO (0.91%), which could
be due to boosted electron transfer efficiency. Of the fabricated devices, DSSC fabricated at 550◦ exhibited the highest PCE (1.91%), with a 35.6% enhancement compared to that obtained at 450◦, as a result of its increased open-circuit voltage (3.29 mA/cm2) and short-circuit current (0.81 V). The proposed work delivers an enhanced efficiency as compared to similar geometries.

Keywords

TiO2; dye-sensitized solar cell; layered double hydroxide; mixed metal oxide

Publication Link

https://doi.org/10.3390/nano14110920

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