We use various types of laser spectroscopy and imaging techniques to study fundamental properties of materials, such as their electronic structures, optical transitions, and vibrational properties. To reveal such intricate hidden information of materials, we often cool them to cryogenic temperatures and apply magnetic/electric fields and microwave radiations. Examples of materials we are currently interested in include two-dimensional semiconductors and magnets, one-dimensional semiconductor carbon nanotubes, and zero-dimensional quantum dots and molecules.

Related recent publications:

• Raman Shifts in Two-Dimensional van der Waals Magnets Reveal Magnetic Texture Evolution, Z. Huang et al. Nano Lett. 24, 1531 (2024)
• Lattice symmetry-guided charge transport in two-dimensional supramolecular polymers promotes triplet formation, R. Emmanuele et al. Adv. Sci. 11, 2402932 (2024)
• Chemomechanical modification of quantum emission in monolayer WSe₂, M. I. B. Utama et al., Nat. Commun. 14, 2193 (2023)
• Observation of biexciton emission from single semiconductor nanoplatelets, L. Peng et al. Phys. Rev. Mater. 5, L051601 (2021)
• Bright and stable light emitting diodes made with perovskite nanocrystals stabilized in metal-organic frameworks, H. Tsai et al. Nat. Photon. 15, 843 (2021)
• Uniaxial transition dipole moments in semiconductor quantum rings caused by broken rotational symmetry, N. F. Hartmann et al. Nat. Commun. 10, 3253 (2019)