Methylammonium bismuth bromide perovskite single crystal growth and its application as saturable absorber for mode-locked fiber laser

Citation

Mansor, M. and Zainol Abidin, N. H. and Liew, J. Y.C. and Md Zain, A. R. and Alresheedi, M. T. and Ng, E. K. and Mahdi, M. A. (2025) Methylammonium bismuth bromide perovskite single crystal growth and its application as saturable absorber for mode-locked fiber laser. Optical Materials, 166. art. no. 117212. pp. 1-11. ISSN 0925-3467

Abstract

This study investigates the morphology, structure and optical properties of methylammonium bismuth bromide, MA3Bi2Br9 (MBB) perovskite single crystals grown via slow evaporation method with different molar ratios of methylammonium bromide to bismuth bromide (3:1, 3:2, 3:3 and 3:4). Comparative analysis of the crystals produced under the different molar ratios revealed distinct differences in crystal morphology. The structural characterization confirmed the perovskite phase formation and exhibited favorable optical properties for saturable absorption. The MBB saturable absorber demonstrated a modulation depth of 9.75% and when employed in an erbium-doped fiber laser, it was able to generate mode-locked pulses with an average duration of 942.8 fs. The generated pulses were stable even when operated at high humidity for long periods. These results showcase the potential of MBB perovskite crystals as effective saturable absorbers for ultrashort pulses generation in fiber lasers and for other potential optoelectronic applications.

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Additional Metadata

Item Type:	Article
Subject:	Electronic, Optical and Magnetic Materials
Subject:	Atomic and Molecular Physics, and Optics
Subject:	Spectroscopy
Divisions:	Faculty of Engineering Faculty of Science Institute of Nanoscience and Nanotechnology
DOI Number:	https://doi.org/10.1016/j.optmat.2025.117212
Publisher:	Elsevier B.V.
Keywords:	Methylammonium bismuth bromide; Perovskite single crystal; Saturable absorber; Mode-locked fiber laser; Erbium-doped fiber laser; Ultrashort pulses; Slow evaporation method; Optical properties; Material morphology; Optoelectronic applications
Sustainable Development Goals (SDGs):	SDG 9: Industry, Innovation and Infrastructure, SDG 7: Affordable and Clean Energy, SDG 12: Responsible Consumption and Production
Depositing User:	MS. HADIZAH NORDIN
Date Deposited:	18 Jun 2026 06:16
Last Modified:	18 Jun 2026 06:16
Altmetrics:	http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/j.optmat.2025.117212
URI:	http://psasir.upm.edu.my/id/eprint/124342
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