Efficient NIR-to-vis photon upconversion in binary rubrene films deposited by simplified thermal evaporation
Edvinas Radiunas, Lukas Naimovičius, Steponas Raišys, Augustina Jozeliūnaitė, Edvinas Orentas, Karolis Kazlauskas
Abstract
Simplified thermal evaporation of rubrene in an inert atmosphere is demonstrated to alter the morphology of photon upconverting (UC) films, and subsequently ramp their NIR-to-vis UC quantum yield up to a record value of 1.2% (out of maximum 50%).
Topics & Concepts
RubrenePhoton upconversionMaterials scienceQuantum yieldEvaporationYield (engineering)ThermalPhotonOptoelectronicsChemical engineeringDopingOpticsComposite materialFluorescencePhysicsMeteorologyEngineeringLuminescence and Fluorescent MaterialsLuminescence Properties of Advanced MaterialsNonlinear Optical Materials Studies