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Zinc Stannate (Zn2SnO4)-Based Hybrid Composite Photoanode for Dye-Sensitized Solar Cell Application

Ramanathan, R and Zinigrad, M and Kasinathan, D and Poobalan, RK (2022) Zinc Stannate (Zn2SnO4)-Based Hybrid Composite Photoanode for Dye-Sensitized Solar Cell Application. In: ACS Applied Energy Materials .

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Official URL: https://doi.org/10.1021/acsaem.2c01981


Improving the power conversation efficiency of dye-sensitized solar cells (DSSCs) has become a challenge and a matter of interest for researchers. Designing a simple device structure with better performance by a cost-effective fabrication technique is essential for photovoltaic technology. This study emphasizes an alternative hybrid composite photoanode material for the DSSC devices. Pristine Zn2SnO4 and Zn2SnO4-SnO2 and Zn2SnO4-ZnO composites were synthesized by facile solid-state calcination to prepare the photoanode for DSSCs. The structural, surface morphological, optical, and band structural properties of the synthesized samples were studied. An attempt has been made to correlate the power conversion efficiency of the fabricated devices with the investigated properties. The X-ray diffraction analysis confirms the presence of multiphases that depend on the stoichiometric ratio of precursor materials. The surface morphology analysis reveals that the Zn2SnO4-SnO2 and Zn2SnO4-ZnO composites exhibit microsheet and microrod structures, respectively. The composite materials show a higher amount of dye loading, leading to better performance than the pristine Zn2SnO4 sample. A better band matching of the synthesized composite materials with other layers provides a higher carrier density. The composite photoanodes exhibit higher efficiency (6.26 for Zn2SnO4-SnO2 and 4.48 for Zn2SnO4-ZnO) than the pristine Zn2SnO4 photoanode (3.76). The results indicate that the Zn2SnO4-based composites can be potential materials for photoanode applications.

Item Type: Journal Article
Publication: ACS Applied Energy Materials
Publisher: American Chemical Society
Additional Information: The copyright for this article belongs to American Chemical Society.
Keywords: Cost effectiveness; Dye-sensitized solar cells; Efficiency; Glass ceramics; II-VI semiconductors; Morphology; X ray diffraction analysis; Zinc; Zinc oxide, Composites material; Dye- sensitized solar cells; Hybrid composites; Performance; Photo-anodes; Power; Simple device structures; Solar-cell applications; Synthesised; Zinc stannate, Energy gap
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 14 Sep 2022 10:07
Last Modified: 14 Sep 2022 10:07
URI: https://eprints.iisc.ac.in/id/eprint/76452

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