Dr. Yang's research is focused on understanding how the transport of electrons, phonons, photon and molecules (gas or fluid) at the micro/nano-scale differs from that in macro-structures, and the applications of micro/nanotechnologies for scalable energy and water systems. On modeling front, his current work focuses on multiscale and multi-physics modeling which effectively integrates quantum-mechanics modeling and Monte Carlo simulations with mesoscale and macroscale tools. These tools are used to study thermoelectric, electro-thermal, and phase-change phenomena of novel structured materials and devices. On experimentation, he has constructed a femtosecond two-color pump-probe system for the measurement of thermal conductivity and thermal interface resistance of thin films and bulk materials. His group develops many low-cost manufacturing technologies for fabricating micro & nano-structures for energy conversion and storage, thermal management, and water desalination applications.
Micro/Nanoscale Thermal Transport, Micro- and Nanotechnologies for Energy Conversion, Energy Storage, Thermal Management for Electronics and Optoelectronics, MEMS/NEMS and Micro-/Nano- Fabrication, Thermoelectrics, Lithium Ion Batteries, Thermal Radiation, Radiative Cooling, Greenhouse, Energy-Water-Food Nexus, Materials Reliability, Machine Learning, Water Desalination