Interface modification and crystallization control of efficient and stable perovskite solar cells using dicyandiamide
Ruicheng Tao, Tiao Wu, Wenxi Ji, Qiaoyun Chen, Zelong Zhang, Dong Rui, Bin Dong, Yi Zhou, Bo Song
Abstract
Dicyandiamide (DCD) was used to modify SnO 2 , with –CN passivating defects and –NH 2 improving perovskite crystallization. This improved energy alignment and film quality, increasing PCE from 21.28% to 24.50% and enhancing stability.
Topics & Concepts
DicyanamideCrystallizationPerovskite (structure)Materials scienceInterface (matter)Chemical engineeringChemistryComposite materialEngineeringCatalysisCapillary numberBiochemistryIonic liquidCapillary actionPerovskite Materials and ApplicationsConducting polymers and applications