Triplet transfer from PbS quantum dots to tetracene ligands: is faster always better?
Victor Gray, William K. Drake, Jesse R. Allardice, Zhilong Zhang, James Xiao, Daniel G. Congrave, Jeroen Royakkers, Weixuan Zeng, Simon Dowland, Neil C. Greenham, Hugo Bronstein, John E. Anthony, Akshay Rao
Abstract
a Dexter exchange mechanism. Even though triplet transfer is slower with BAT the overall yield is greater, as determined from upconverted emission using rubrene emitters. This work highlights that the surface-mediated transfer mechanism is plagued with parasitic loss pathways and that materials with direct Dexter-like triplet transfer are preferred for high-efficiency applications.
Topics & Concepts
TetraceneMaterials scienceQuantum yieldQuantum dotOrganic semiconductorPhotochemistryRubreneNanotechnologyChemical physicsChemistryOptoelectronicsAnthracenePhysicsFluorescenceQuantum mechanicsPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesOrganic Light-Emitting Diodes Research