Nai-Chang Yeh specializes in experimental condensed matter physics, focusing on fundamental studies and technological applications of quantum materials and nanoscience. Her current research topics include correlated electrons (e.g., high-temperature superconductors and colossal magnetic perovskites), topological materials (e.g., topological insulators/superconductors), low-dimensional systems (e.g., van der Waals materials/heterostructures based on graphene, hexagonal boron nitride, and transition-metal dichalcogenides), and energy research (e.g., photovoltaic cells, lithium-ion batteries, and supercapacitors).