Guest Editors
Assoc. Prof. Hussein A. Elsayed
Email: hu.abdelghany@uoh.edu.sa
Affiliation: Department of Physics, College of Science, University of Ha'il, Ha'il, Saudi Arabia
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Research Interests: metasurface structures based 2D materials, photonic crystals based 2D materials, angular surface plasmon resonance sensors based 2D materials
Assoc. Prof. Ahmed Mehaney
Email: ahmed011236@science.bsu.edu.eg
Affiliation: Photonic and Phononic Crystals Lab., Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 62514, Egypt
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Research Interests: metasurface structures based 2D materials, photonic crystals based 2D materials, angular surface plasmon resonance sensors based 2D materials
Summary
Sulfur-based two-dimensional (2D) materials, such as transition metal dichalcogenides and metal sulfides, have emerged as a powerful class of functional nanomaterials owing to their tunable bandgaps, strong light–matter interaction, and exceptional electronic, optical, and sensing properties. These characteristics position them at the forefront of next-generation photonics, optoelectronics, energy, and sensing technologies.
This Special Issue aims to present recent advances in the synthesis, characterization, theoretical modelling, and device integration of sulfur-based two-dimensional materials. Emphasis is placed on their optical, electronic, plasmonic, and sensing functionalities, particularly in emerging photonic platforms such as photonic crystals, metasurfaces, and angular surface plasmon resonance (SPR) sensors. Contributions addressing material engineering, interface physics, defect and strain tuning, and hybrid nanostructures are highly encouraged. Both experimental and theoretical studies that explore fundamental mechanisms and practical device applications are welcomed, targeting breakthroughs in ultra-sensitive sensors, compact photonic devices, tunable metasurfaces, and integrated nanophotonic systems.
Therefore, this Special Issue focuses on sulfur-based two-dimensional materials and their emerging roles in photonics, plasmonics, metasurfaces, and advanced sensing platforms. The following subtopics represent particular interests of this Special Issue, including but not limited to:
· Synthesis, growth, and functionalization of sulfur-based 2D materials
· Optical and electronic properties of transition metal sulfides and related heterostructures
· Sulfur-based 2D materials in photonic crystals and bandgap engineering
· Angular surface plasmon resonance (SPR) sensors based on 2D sulfide layers
· Metasurfaces and flat-optics devices using sulfur-based 2D materials
· Nonlinear optics, light–matter interaction, and ultrafast photonics
· Biosensing, gas sensing, and environmental monitoring applications
Keywords
sulfur-based two-dimensional materials, transition metal dichalcogenides (TMDs); two-dimensional metal sulfides; MoS₂, WS₂, and related layered materials; van der Waals heterostructures, light–matter interaction in 2D sulfides; electronic and optical properties of TMDs
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