Kim, Gee Yeong
Senocrate, Alessandro http://orcid.org/0000-0002-0952-0948
Yang, Tae-Youl
Gregori, Giuliano
Grätzel, Michael
Maier, Joachim http://orcid.org/0000-0003-2274-6068
Article History
Received: 23 October 2017
Accepted: 7 February 2018
First Online: 19 March 2018
Competing interests
: The authors declare no competing interests.