I develop novel multiphoton-activated and quantum-emissive nanomaterials that bridge fundamental materials science with device- and system-level integration. My future work focuses on designing bright, stable colloidal emitters and nonlinear-active probes for practical photonic platforms, including waveguides, microcavities, optical fibers, metasurfaces, and biological imaging systems. Key objectives are to deliver on-chip single- and few-photon sources for quantum information processing, highly sensitive nonlinear optical sensors, and biocompatible probes for deep-tissue multiphoton imaging.

The frontier article Halide Perovskite Nanocrystals for Multiphoton Applications was published as a cover feature in Dalton Transactions

Related Publications:
1. H. He, et al., Aqueous Colloidal Perovskite Quantum Emitters. Adv. Mater. 2025, 2500349.
2. K.K. Chan, D. Giovanni, H. He, T.C. Sum, K.T. Yong, Water-Stable All-Inorganic Perovskite Nanocrystals with Nonlinear Optical Properties for Targeted Multiphoton Bioimaging. ACS Appl. Nano Mater. 2021, 4 (9), 9022-9033.
3. H. He, T.C. Sum, Halide Perovskite Nanocrystals for Multiphoton Applications. Dalton Trans. 2020, 49 (43), 15149-15160.