Welcome to Wang's group. This lab was set up in 2009, belonging to Research Center for Wide Gap Semiconductor of Peking University. Our group focuses on the growth mechanism and device applications of III-nitrides, such as solar cell, single photon source, resonant tunneling diodes, UV/IR dual bands detectors, deep-UV light source and so on. We have upgraded SVTA-MBE system in order to expand growth ability in the forefront of nitride materials research and set up an integrated MBE system with angle-resolved photoelectron spectroscopy, which is propitious to explore new materials and devices. Visitors and undergraduate students are always welcome!