6533b823fe1ef96bd127e30b

RESEARCH PRODUCT

Photoluminescence quantum yield exceeding 80% in low dimensional perovskite thin-films via passivation control

Henk J. BolinkMichele SessoloMaria Grazia La-placaLaura Martínez-sartiAzin BabaeiGiulia Longo

subject

BrightnessPhotoluminescenceMaterials sciencePassivationQuantum yieldElectron donor02 engineering and technology010402 general chemistry01 natural sciencesCatalysislaw.inventionchemistry.chemical_compoundlawMaterials ChemistryThin filmPerovskite (structure)business.industryMetals and AlloysGeneral Chemistry021001 nanoscience & nanotechnology0104 chemical sciencesSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialschemistryCeramics and CompositesOptoelectronics0210 nano-technologybusinessLight-emitting diode

description

Quasi-2D perovskites with the BA : MA molar ratio equal to 3 : 3 show a remarkable PLQY exceeding 80%, thanks to the use of an electron donor as the passivating agent. These films have been applied in LEDs that exhibit high brightness exceeding 1000 cd m−2 and current efficiencies >3 cd A−1.

https://doi.org/10.1039/c7cc04149g