His current research interests are focused on emerging smart sensors and imagers for the Internet-of-Everything/Intelligence (IoE/IoI) and Ubiquitous Electronics. He has published more than 120 SCI journal papers including Nature Electronics, Nature Nanotechnology, Nature Photonics, Chem. Rev., Nature Comm, Adv. Mater.,Phys. Rep., Chem. Soc. Rev., Nano Lett., ACS Nano, Phys. Rev. Lett. and IEDM, etc. He holds 30 granted patents and gave more than 50 talks in international conferences. He is an IEEE distinguished lecturer, Fellow of the Institute of Physics (FInstP), Fellow of Royal Society of Chemistry (FRSC), Fellow of the Institute of Materials, Minerals and Mining (FIMMM), Fellow of Institute of Engineering and Technology (FIET) and Associate Editor of IEEE TED and IEEE Nanotechnology Magazine, Editorial board member of IOP Nanotechnology, and TPC committee members of some IEEE conferences.