Professor Lou Xiaojie has been engaged in the basic research on the application of electronic materials and devices. He is studying the polarization fatigue, Rayleigh's law, size effect, reversal dynamics, polarization maintenance, electron emission, electrical card/bounce card effect and Many important contributions have been made in areas such as lead-free piezoelectric. Published 132 high-quality papers in internationally renowned academic journals (such as PRL, AM, AFM, JACS, PRB, APL, etc.); of which 16 were the first author, 58 were the corresponding author, were cited by SCI 2954 times, and were authorized as a Chinese invention 2 patents. Based on the outstanding academic achievements of Professor Lou Xiaojie, he has been invited to serve as the chairman of the branch of international academic conferences 7 times, and has given topics, special invitations or oral presentations at international conferences more than 10 times.