Hao, Yan
Yang, Wenxing http://orcid.org/0000-0002-3440-9416
Zhang, Lei
Jiang, Roger
Mijangos, Edgar
Saygili, Yasemin
Hammarström, Leif
Hagfeldt, Anders
Boschloo, Gerrit
Article History
Received: 2 June 2016
Accepted: 11 November 2016
First Online: 21 December 2016
Competing interests
: The authors declare no competing financial interests.