Publication
The 4,4'-dimethoxydiphenylamine-substituted 9,9'-bifluorenylidene (KR216) hole transporting material has been synthesized using a straightforward two-step procedure from commercially available and inexpensive starting reagents, mimicking the synthetically challenging 9,9'-spirobifluorene moiety of the well-studied spiro-OMeTAD. A power conversion efficiency of 17.8% has been reached employing a novel HTM in a perovskite solar cells.
Mounir Driss Mensi, Masaud Hassan S Almalki, Anwar Qasem M Alanazi
Mohammad Khaja Nazeeruddin, Jianxing Xia, Ruiyuan Hu
Mohammad Khaja Nazeeruddin, Yong Ding, Bin Ding, Xianfu Zhang