Dr. Li's research interest focuses on developing experimental studies of thermal-fluid problems primarily at microscopic scales with broad applications in thermal sciences, energy, water, and the environment. He takes advantage of non-intrusive optical diagnostics, such as fluorescent microscopy and microscopic particle image velocimetry to characterize thermal and mass transport in microscale heat transfer, multiphase flow and porous media flows. He is also interested in designing and fabricating microfluidic devices with applications in thermal management and clean energy.