Ping Chen has been a Professor at the Joint State Key Laboratory of Integrated Optoelectronics, Jilin University since 2016. He was a Lecturer from 2008 to 2011 and an Associate Professor from 2011 to 2016 at the Joint State Key Laboratory of Integrated Optoelectronics, Jilin University. He obtained a Bachelor's degree from the School of Electronic Science and Engineering, Jilin University from 1999 to 2003 and a Ph.D. from the School of Electronic Science and Engineering, Jilin University from 2003 to 2008. Research Keywords include organic light-emitting diodes; double emission layers structure; high efficiency; low efficiency roll-off; inorganic perovskite; polymer; white peeled; single-layer OLEDs; uniform co-host structure; exciton recombination region; dopant effect; and charge carriers.