MgO Nanoparticle Modified Anode for Highly Efficient SnO₂-Based Planar Perovskite Solar Cells.

ABSTRACT: Reducing the energy loss and retarding the carrier recombination at the interface are crucial to improve the performance of the perovskite solar cell (PSCs). However, little is known about the recombination mechanism at the interface of anode and SnO₂ electron transfer layer (ETL). In this work, an ultrathin wide bandgap dielectric MgO nanolayer is incorporated between SnO₂:F (FTO) electrode and SnO₂ ETL of planar PSCs, realizing enhanced electron transporting and hole blocking properties. With the use of this electrode modifier, a power conversion efficiency of 18.23% is demonstrated, an 11% increment compared with that without MgO modifier. These improvements are attributed to the better properties of MgO-modified FTO/SnO₂ as compared to FTO/Sn

SUBMITTER: Ma J 

PROVIDER: S-EPMC5604382 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature