Shaping Hybrid Perovskite Nanowires for Low-threshold lasing

Nan Zhao^a, Daniela Marongiu^a, Angelica Simbula^a, Valeria Demontis^a, Aditya Bhardwaj^a, Selene Matta^a, Silvia Liscia^a, Emmanuele Cadeddu^a, Nicola Sestu^a, Francesco Mattana^a, Michele Saba^a, Andrea Mura^a, Francesco Quochi^a, Giovann1 Bongiovanni^a

^aDipartimento di Fisica, Università degli Studi di Cagliari, Monserrato, CA, 09042 Italy

NIPHO25
Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO25)

Cagliari, Italy, 2025 June 9th - 10th

Organizers: Giulia Grancini, Daniela Marongiu and Aldo Di Carlo

Poster, Nan Zhao, 048
Publication date: 24th April 2025

Hybrid halide perovskite materials have attracted extensive interest among researchers due to their outstanding optoelectronic performance, straightforward fabrication processes, and cost – effectiveness. These materials have been extensively used in a range of semiconductor optoelectronic devices, including solar cells, light-emitting diodes, photodetectors, and lasers. In this study, we explored the growth mechanisms of hybrid halide perovskite nanowires based on I and Br, with particular attention to the precise control of environmental parameters such as temperature and reaction time. As a result, we successfully synthesized perovskite nanowires exceeding 200 μm in length. The structural and physical properties were systematically investigated using a suite of advanced characterization techniques, including X-ray diffraction (XRD), atomic force microscopy (AFM) and photoluminescence spectroscopy (PL). Thanks to their high crystallinity and well-defined morphology, the synthesized nanowires of MAPbBr₃ and MAPbI₃ exhibited promising optoelectronic behavior, including low-threshold lasing.

References:

[1] Zhu H, Fu Y, Meng F, et al. Lead halide perovskite nanowire lasers with low lasing thresholds and high quality factors. Nature mater, 2015, 14,6, 636-642.

[2] Chang C Y, Tsai B C, Lin M Z, et al. An integrated approach towards the fabrication of highly efficient and long-term stable perovskite nanowire solar cells. J. Mater. Chem. A, 2017, 5,43, 22824-22833.

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