Author Affiliations +
Kai You,1,2 Jing Liu,1,2 Hao Lü,1,2 Qiuling Zhao,1,2 Xia Wang,1,2 Wing Yim Tam3
1Qingdao Univ. of Science and Technology (China)
2Shandong Advanced Optoelectronic Materials and Technologies Engineering Lab. (China)
3Hong Kong Univ. of Science and Technology (Hong Kong, China)