Enhancing stability and efficiency of perovskite solar cells with crosslinkable silane-functionalized and doped fullerene.

ABSTRACT: The instability of hybrid perovskite materials due to water and moisture arises as one major challenge to be addressed before any practical application of the demonstrated high efficiency perovskite solar cells. Here we report a facile strategy that can simultaneously enhance the stability and efficiency of p-i-n planar heterojunction-structure perovskite devices. Crosslinkable silane molecules with hydrophobic functional groups are bonded onto fullerene to make the fullerene layer highly water-resistant. Methylammonium iodide is introduced in the fullerene layer for n-doping via anion-induced electron transfer, resulting in dramatically increased conductivity over 100-fold. With crosslinkable silane-functionalized and doped fullerene electron transport layer, the perovskite devices delive

SUBMITTER: Bai Y 

PROVIDER: S-EPMC5059465 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature