Jang, Ji-Wook
Du, Chun
Ye, Yifan
Lin, Yongjing
Yao, Xiahui
Thorne, James
Liu, Erik
McMahon, Gregory
Zhu, Junfa
Javey, Ali
Guo, Jinghua
Wang, Dunwei
Article History
Received: 20 March 2015
Accepted: 8 May 2015
First Online: 16 June 2015
Competing interests
: The authors declare no competing financial interests.