Feng, Jiandong
Liu, Ke
Bulushev, Roman D.
Khlybov, Sergey
Dumcenco, Dumitru http://orcid.org/0000-0002-7388-5597
Kis, Andras
Radenovic, Aleksandra
Article History
Received: 27 May 2014
Accepted: 20 August 2015
First Online: 21 September 2015
Competing interests
: The authors declare an intellectual property interest in a provisional patent WO/121394 A1.