Enhanced Ambient Stability of Efficient Perovskite Solar Cells by Employing a Modified Fullerene Cathode Interlayer

Zonglong Zhu; Chu-Chen Chueh; Francis Lin; Alex K-Y Jen

doi:10.1002/advs.201600027

Enhanced Ambient Stability of Efficient Perovskite Solar Cells by Employing a Modified Fullerene Cathode Interlayer

Adv Sci (Weinh). 2016 Mar 22;3(9):1600027. doi: 10.1002/advs.201600027. eCollection 2016 Sep.

Authors

Zonglong Zhu¹, Chu-Chen Chueh¹, Francis Lin², Alex K-Y Jen³

Affiliations

¹ Department of Materials Science and Engineering University of Washington Seattle WA 98195-2120 USA.
² Department of Chemistry University of Washington Seattle WA 98195-2120 USA.
³ Department of Materials Science and EngineeringUniversity of WashingtonSeattleWA98195-2120USA; Department of ChemistryUniversity of WashingtonSeattleWA98195-2120USA.

Abstract

A novel fullerene cathode interlayer is employed to facilitate the fabrication of stable and efficient perovskite solar cells. This modified fullerene surfactant significantly increases air stability of the derived devices due to its hydrophobic characteristics to enable 80% of the initial PCE to be retained after being exposed in ambient condition with 20% relative humidity for 14 days.

Keywords: air stability; fullerene; perovskite; solar cells; surfactant.