Research Overview
Our group investigates the electronic, optical, and structural properties of novel nanostructures and 2D materials (such as transition metal dichalcogenides and hexagonal boron nitride). We specialize in high-spatial-resolution spectroscopy and microscopy techniques, correlating localized physical phenomena at the nanoscale with atomic structure.
Core Research Topics:
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2D Quantum Materials: Excitonic physics, dielectric screening, and defect engineering in monolayer TMDs and h-BN, Quantum Dots.
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Nano-Optics & Luminescence: Light emission induced by local electron injection in STM.
Experimental Facilities & Capabilities
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Scanning Tunneling Luminescence (STML)
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Capability: High-resolution STM coupled with parabolic mirror collection optics for STM-induced light emission (STM-LE), photoluminescence (PL), Low Energy Cathodoluminescence (CL) and Raman spectroscopy.
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Applications: Probing local excitonic dynamics, plasmon-exciton coupling, and atomic-scale defect luminescence under controlled environmental conditions.
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Other experimental facilities
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Micro-Photoluminescence;
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Atomic Force Microscopy.
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Ongoing Research Projects
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Optoelectronic Properties of 2D Materials and heterostructures
Investigating charge transfer, interfacial adsorbates, and luminescence retention of TMD monolayers.
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Point Defects and Exciton Dynamics in Monolayer Hexagonal Boron Nitride (h-BN)
Probing carbon-related defects, intragap electronic states, and excitonic emission, single-photon emission centers at low temperatures.
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Custom Instrumentation for In-Situ Optical Spectroscopy in STM
Developing off-axis parabolic collector systems to combine light injection and collection for multi-spectroscopic characterization.
