https://doi.org/10.1140/epjd/s10053-024-00906-7
Regular Article - Optical Phenomena and Photonics
Optical simulation of triple-junction tandem solar cell based on SnO2 core nanowire array embedded in CZTSe, Cs2SnI6 and CuAlxIn1−xTe2 layers in bottom, middle and top cells, respectively
1
Laboratoire de Recherche: Nanomatériaux Nanotechnologie et Energie (2NE), Faculté des Sciences de Tunis, Tunis, Tunisia
2
Ecole Nationale Supérieure des Ingénieurs de Tunis, Université de Tunis, 5 Rue Taha Hussein, Montfleury, 1008, Tunis, Tunisia
Received:
14
May
2024
Accepted:
15
August
2024
Published online:
2
September
2024
This study focuses on optical optimizing triple-junction tandem solar cell using a novel combination of absorber materials and SnO2 vertically aligned nanowire array buffer layers to enhance power conversion efficiency. The absorbers in the bottom, middle and top cells are CZTSe, Cs2SnI6 and CuAlxIn1−xTe2, respectively. The bandgaps of CZTSe and Cs2SnI6 are 1.05 and 1.62 eV, respectively. On the other hand, that of CuAlxIn1−xTe2 depends on x and varies from 1.71 to 2.2 eV. The top cell is coated by an anti-reflective layer. Rigorous coupled wave analysis simulations were used to optimize geometrical parameters of the tandem cell. Results show that the efficiency of the optimized tandem cell reaches 42.15% for x = 0.3 in CuAlxIn1−xTe2. This work helps advance the design of high-performance solar cells for sustainable energy applications.
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© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
