Lateral‐Polarity Structure of AlGaN Quantum Wells: A Promising Approach to Enhancing the Ultraviolet Luminescence

W.G. and H.S. contributed equally to this work. The NIMTE authors acknowledge the support of the National Key Research and Development Program of China (Grant No. 2016YFB0400802), the National Natural Science Foundation of China (Grant No. 61704176), and the Open project of Zhejiang Key Laboratory for Advanced Microelectronic Intelligent Systems and Applications (Grant No. ZJUAMIS1704). The KAUST authors acknowledge the support of the KAUST Baseline BAS/1/1664-01-01, OCRF-2014-CRG3-6214038, and the National Natural Science Foundation of China (Grant No. 61774065). The authors greatly appreciate the help from Prof. Zi-hui Zhang and co-workers of Hebei University of Technology in theoretical band diagram calculations and fruitful discussions on device physics.