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Highly conductive double perovskite oxides A2LuTaO6 (A= Ba, Sr, Ca) as promising photoanode material for dye sensitized solar cells

Sheikh, Md Sariful; Roy, Anurag; Bhandari, Shubhranshu; Mallick, Tapas K; Sundaram, Senthilarasu; Sinha, TP

Authors

Md Sariful Sheikh

Anurag Roy

Shubhranshu Bhandari

Tapas K Mallick

TP Sinha



Abstract

Poor electrical conductivity, interfacial charge carrier recombination, electrode degradation, etc., restrict practical implementation of the TiO2 based dye sensitised solar cells (DSSCs). In this respect, double perovskite oxides (DPOs) A2LuTaO6 (A = Ba, Sr, Ca) have been introduced as the promising DSSC photoanode. These solid-state synthesised DPOs exhibit a suitable wide band gap in the range of 2.94 to 4.07 eV, and 104 times higher order of electrical conductivity than TiO2. This study reveals that the crystal structure and hence the physical properties of these DPOs can also be easily modulated as required by varying its composition.

Journal Article Type Article
Acceptance Date Jun 24, 2020
Online Publication Date Jun 27, 2020
Publication Date 2020-10
Deposit Date Mar 13, 2023
Journal Materials Letters
Print ISSN 0167-577X
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 276
Article Number 128220
DOI https://doi.org/10.1016/j.matlet.2020.128220