Li, Xiong
Ibrahim Dar, M.
Yi, Chenyi
Luo, Jingshan
Tschumi, Manuel
Zakeeruddin, Shaik M.
Nazeeruddin, Mohammad Khaja
Han, Hongwei
Grätzel, Michael
Article History
Received: 4 April 2015
Accepted: 8 July 2015
First Online: 17 August 2015
Competing interests
: The authors declare no competing financial interests.