Improved efficiency and stability of flexible perovskite solar cells by a new spacer cation additive
Xiaobo Zhang, Yang Ma, Xiaoqing Chen, Xuhong Li, Wencai Zhou, Nabonswendé Aïda Nadège Ouedraogo, Yasuhiro Shirai, Yongzhe Zhang, Hui Yan
Abstract
= 6 mm). In addition, compared to methylammonium or formamidinium cation, due to the stronger hydrophobic and larger activation energy barrier for the ion migration of the CPHC spacer cation, the device retained over 80% of the initial PCE after 30 days storage in an ambient environment.
Topics & Concepts
Perovskite (structure)Chemical engineeringAdhesiveMaterials scienceNanotechnologyLayer (electronics)EngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsOrganic Light-Emitting Diodes Research