Publication | Open Access
Solar Cells: Improving Interfacial Charge Recombination in Planar Heterojunction Perovskite Photovoltaics with Small Molecule as Electron Transport Layer (Adv. Energy Mater. 18/2017)
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2017
Year
Electrical EngineeringEngineeringPerovskite Solar CellPerovskite ModuleSolar Cell StructuresApplied PhysicsPerovskite MaterialsHalide PerovskitesPerovskite/etl InterfacePhotovoltaic DevicesChemistrySolar CellsLead-free PerovskitesFunctional MaterialsPhotovoltaicsElectron Transport LayerSolar Cell Materials
In article number 1700522, Xiao Wei Sun, Qichun Zhang, and co-workers report the design and synthesis of a new n-type small molecule with a sulfur-containing structure. Employing this small molecule as electron transport layer (ETL), highefficiency planar perovskite solar cells up to 18.1% are realized. This superior performance is mainly due to effective suppression of charge recombination at the perovskite/ETL interface.