Li, Xiaoyan
Luo, Guiling
Xie, Hui
Niu, Yanyan
Li, Xiaobao
Zou, Ruyi
Xi, Yaru
Xiong, Yi
Sun, Wei
Li, Guangjiu
Funding for this research was provided by:
National Natural Science Foundation of China (21665007)
National Natural Science Foundation of Hainan Province of China (2017CXTD007)
Research Fund from Beijing Innovation Center for Future Chips (KYJJ2018006)
Key Science and Technology Program of Haikou City (2017042)
Program for Innovative Research Team in University (IRT-16R19)
Article History
Received: 27 November 2018
Accepted: 8 April 2019
First Online: 26 April 2019
Compliance with ethical standards
: The author(s) declare that they have no competing interests.