23.2% efficient low band gap perovskite solar cells with cyanogen management
W. Hashini K. Perera, Thomas Webb, Yuliang Xu, Jingwei Zhu, Yundong Zhou, Gustavo F. Trindade, Mateus G. Masteghin, Steven P. Harvey, Sandra Jenatsch, Linjie Dai, Sanjayan Sathasivam, Thomas J. Macdonald, Steven J. Hinder, Yunlong Zhao, Samuel D. Stranks, Dewei Zhao, Wei Zhang, K. D. G. Imalka Jayawardena, Saif A. Haque, S. Ravi P. Silva
Abstract
The role of thiocyanates in minimising organohalide diffusion into PEDOT:PSS whilst accelerating device degradation is identified and a route towards improving both device efficiency and stability is demonstrated.
Topics & Concepts
Perovskite (structure)PEDOT:PSSDegradation (telecommunications)DiffusionMaterials scienceOptoelectronicsChemical engineeringBand gapNanotechnologyComputer scienceTelecommunicationsPhysicsEngineeringThermodynamicsLayer (electronics)Perovskite Materials and ApplicationsConducting polymers and applicationsOrganic Electronics and Photovoltaics