Suslu, Aslihan
Wu, Kedi
Sahin, Hasan
Chen, Bin
Yang, Sijie
Cai, Hui
Aoki, Toshihiro
Horzum, Seyda
Kang, Jun
Peeters, Francois M.
Tongay, Sefaattin
Article History
Received: 23 October 2015
Accepted: 5 January 2016
First Online: 5 February 2016
Competing interests
: The authors declare no competing financial interests.