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Lookup NU author(s): Dr Toby HallamORCiD
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© 2024 Wiley-VCH GmbH. Various polytypes of van der Waals (vdW) materials can be formed by sulfur and tin, which exhibit distinctive and complementary electronic properties. Hence, these materials are attractive candidates for the design of multifunctional devices. This work demonstrates direct selective growth of tin sulfides by laser irradiation. A 532 nm continuous wave laser is used to synthesize centimeter-scale tin sulfide tracks from single source precursor tin(II) o-ethylxanthate under ambient conditions. Modulation of laser irradiation conditions enables tuning of the dominant phase of tin sulfide as well as SnS2/SnS heterostructures formation. An in-depth investigation of the morphological, structural, and compositional characteristics of the laser-synthesized tin sulfide microstructures is reported. Furthermore, laser-synthesized tin sulfides photodetectors show broad spectral response with relatively high photoresponsivity up to 4 AW−1 and fast switching time (τ rise = 1.8 ms and τ fall = 16 ms). This approach is versatile and can be exploited in various fields such as energy conversion and storage, catalysis, chemical sensors, and optoelectronics.
Author(s): Averchenko AV, Abbas OA, Salimon IA, Zharkova EV, Grayfer ED, Lipovskikh S, McNaughter P, Lewis D, Hallam T, Lagoudakis PG, Mailis S
Publication type: Article
Publication status: Published
Journal: Small
Year: 2024
Pages: ePub ahead of Print
Online publication date: 14/07/2024
Acceptance date: 21/06/2024
ISSN (print): 1613-6810
ISSN (electronic): 1613-6829
Publisher: John Wiley and Sons Inc.
URL: https://doi.org/10.1002/smll.202401891
DOI: 10.1002/smll.202401891
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