2D PEA<sub>2</sub>SnI<sub>4</sub> Inkjet-Printed Halide Perovskite LEDs on Rigid and Flexible Substrates
Giovanni Vescio, Jesús Sánchez‐Díaz, Juan Luis Frieiro, Rafael S. Sánchez, S. Hernández, A. Cirera, Iván Mora‐Seró, B. Garrido
Abstract
Lead-free PEA2SnI4-based perovskite LEDs are successfully inkjet-printed on rigid and flexible substrates. Red-emitting devices (λmax = 633 nm) exhibit, under ambient conditions, a maximum external quantum efficiency (EQEmax) of 1% with a related brightness of 30 cd/m2 at 10 mA/cm2.
Topics & Concepts
Light-emitting diodeHalidePerovskite (structure)Materials scienceOptoelectronicsBrightnessQuantum dotQuantum efficiencyOpticsChemistryCrystallographyInorganic chemistryPhysicsPerovskite Materials and ApplicationsOrganic Light-Emitting Diodes ResearchConducting polymers and applications