Funding for this research was provided by:
China National Funds for Distinguished Young Scientists (61604112, 61534004)
Text and Data Mining valid from 2019-04-04
Received: 19 December 2018
Accepted: 6 March 2019
First Online: 4 April 2019
: State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi’an 710071, People’s Republic of China.
: The authors declare that they have no competing interests.
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