Haichun Liu

Haichun Liu is a Researcher at the Royal Institute of Technology (KTH), affiliated with the Department of Applied Physics and the Bio-Opto-Nano Fysik Unit. His research focuses on light upconversion nanotechnology, super-resolution microscopy, and perovskite quantum dots. He leads courses such as Current Literature in Theoretical Chemistry and Biology and Nanophotonics and Bionanophotonics.

His work bridges photonics and nanomaterials, emphasizing applications in imaging, energy conversion, and nanomedicine. Key achievements include developing core-shell nanoparticles for solar cells, suppressing cation intermixing in upconversion materials, and advancing super-resolution microscopy techniques with unprecedented imaging speeds. Liu has published extensively in journals like Nature Communications, Light: Science & Applications, and Nanoscale.

• Recent publications (2023–2024) address water’s role in luminescent nanoparticles, transient energy trapping strategies, and frequency-domain luminescence characterization.
• Developed optical encoding methods using phase-angle modulation and microsphere-mediated light field modulation for high-resolution imaging.
• Active in educational roles, designing curricula that integrate theoretical and practical nanophotonics.

His lab explores interdisciplinary challenges in biomolecular physics and nanophotonics, with ongoing projects on dye-nanoparticle interactions and photodynamic therapy feedback systems.