AUTHOR=He Chunfeng , Zhang Fayin , Zhao Xin , Lin Changjian , Ye Meidan 

TITLE=Interface Engineering of BCP Buffer Layers in Planar Heterojunction Perovskite Solar Cells With NiOx Hole Transporting Layers

JOURNAL=Frontiers in Physics

VOLUME=6

YEAR=2018

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2018.00099

DOI=10.3389/fphy.2018.00099

ISSN=2296-424X

ABSTRACT=<p>Bathocuproine (BCP) was first employed as the interface buffer layers between the PCBM and Ag layers to improve the performance of Cs<sub>0.08</sub>(MA<sub>0.17</sub>FA<sub>0.83</sub>)<sub>0.92</sub>Pb(I<sub>0.83</sub>Br<sub>0.17</sub>)<sub>3</sub> perovskite solar cells based on NiO<sub>x</sub> hole transporting layers. The effect of different evaporation times on the performance of solar cells at the same evaporation temperature (100°C) was carefully investigated. The optimum device efficiency of 14.47% was obtained by evaporating BCP for 36 s, suggesting an enhancement of 14% as compared to the cell without BCP modification.</p>