Effect of Cs-Incorporated NiO _x on the Performance of Perovskite Solar Cells.

ABSTRACT: The effect of Cs-incorporated NiO _x on perovskite solar cells with an inverted structure was investigated, where NiO _x and PCBM were used as selective contacts for holes and electrons, respectively. It was found that the generation of an Ni phase in an NiO _x layer was significantly suppressed by employing cesium. Furthermore, Cs-incorporated NiO _x enabled holes to be efficiently separated at the interface, showing the improved photoluminescent quenching and thus generating higher short-circuit current. The effect of Cs incorporation was also prominent in the inhibition of recombination. The recombination resistance of Cs-incorporated NiO _x was noticeably increased by more than three-fold near the maxi

SUBMITTER: Kim HS 

PROVIDER: S-EPMC6645592 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature