Tailored MoO3 hole transport layer for performance enhancement in lead-free hybrid tandem perovskite solar cell

Arith, Faiz and Abdul Wahab, Zulfanizam and Ahmad Jalaludin, Nabilah and Salehuddin, Fauziyah and Muhammad Mustafa, Ahmad Nizamuddin and Johari, Nur Aliesa and Mahamood, Mazlin Aida and Islam, Mohammad Aminul (2026) Tailored MoO3 hole transport layer for performance enhancement in lead-free hybrid tandem perovskite solar cell. Applied Physics A: Materials Science and Processing, 132 (5). pp. 1-14. ISSN 0947-8396

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Official URL: https://link.springer.com/article/10.1007/s00339-0...

Abstract

This study reports the design and optimization of a two-terminal tandem solar cell combining a lead-free perovskite top cell based on methylammonium tin iodide (MASnI3) with a silicon bottom cell. Molybdenum trioxide (MoO3) serves as the hole transport layer (HTL) in the perovskite cell, providing favorable energy alignment and chemical stability for efficient charge extraction. Careful passivation of interfacial defects at the MoO3/MASnI3 interface minimized non-radiative recombination and enhanced hole transport. The optimized perovskite sub-cell achieved a power conversion efficiency (PCE) of 20.48%, while the silicon bottom cell reached 15.72%, resulting in a tandem PCE of 34.19%. These results underscore the critical role of interfacial defect control and inorganic HTL engineering in improving lead-free perovskite/silicon tandem performance. This tandem architecture offers a promising route toward scalable, environmentally friendly photovoltaic devices surpassing single-junction efficiency limits.

Item Type:	Article
Uncontrolled Keywords:	Hole transport layer, Perovskite solar cell, Tandem Perovskite solar cell
Divisions:	Faculty Of Electronics And Computer Technology And Engineering
Depositing User:	Sabariah Ismail
Date Deposited:	13 Jul 2026 06:44
Last Modified:	13 Jul 2026 06:44
URI:	http://eprints.utem.edu.my/id/eprint/29959
Statistic Details:	View Download Statistic

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