[1]  Our interests are exploring the synthesis for wide bandgap electron materials by metal-organic chemical vapor deposition and RF sputtering deposition using x-ray scattering as real-time probes of growth and processing. 1) Relaxation mechanisms and defect incorporation in epitaxial films 2) Time-resovled studies in structural and lattice response in thin films 3) Coherent x-ray scattering methods applied to the study of crystal growth The research group of Asst. Prof. Guangxu Ju at the Institute of Condensed Matter and Material Physics, School of Physics, Peking University, specializing in in-situ x-ray characterizations of nitride semiconductors, is seeking candidates at the postdoctoral level and PhD. Please contact me if you are interested in nitride semiconductors, epitaxial growth dynamics, x-ray crystallography, and optical and electrical materials: gxju@pku.edu.cn.

[2]  本课题组立足于凝聚态实验物理和同步辐射表征的交叉领域，着重要研究氮化物半导体薄膜、表面界面以及缺陷应力等的物理机制和生长动力学。通过利用同步辐射先进X射线表征技术实时/原位监测GaN基半导体外延生长的实验和理论研究， 我们可以实现在原子尺度上对这些氮化物体系的精确设计以及制备； 并进一步对其物理特性进行研究和探索。主要集中在： （1）氮化物半导体外延生长动力学的机理研究 （2）InGaN基长波长LED的表界面和缺陷机理研究 （3）氮化物薄膜在micro-LED和高功率电子器件中的应用 （4）相干X射线散射技术在原位表征氮化物薄膜外延生长及其器件中的应用 我们热忱欢迎对氮化物半导体、光电子、X射线晶体学、大科学装置-同步辐射研究感兴趣的研究生、博士后加盟。感兴趣的同学请email联系(gxju@pku.edu.cn)。