New insights on the optical properties and upconversion fluorescence of Er-doped CoAl<sub>2</sub>O<sub>4</sub> nanocrystals
Nguyễn Trung Kiên, Vũ Đình Lãm, Pham Van Duong, Nguyễn Thị Hiền, Nguyễn Thị Luyến, P. V., Nguyễn Thanh Bình, Nguyễn Xuân Ca
Abstract
, suggests that the vibrational frequencies in the given samples are relatively low. The upconversion fluorescence phenomenon was observed and explained in detail under an excitation wavelength of 978 nm when the excitation power was varied.
Topics & Concepts
Photon upconversionNanocrystalCoalSpinelDopingIonMaterials scienceFluorescencePrecipitationPhase (matter)AlloyRare earthCrystal structureCoprecipitationAnalytical Chemistry (journal)MineralogyCrystallographyChemical engineeringChemistryNanotechnologyOptoelectronicsInorganic chemistryOpticsMetallurgyOrganic chemistryMeteorologyPhysicsEngineeringPigment Synthesis and PropertiesLuminescence Properties of Advanced MaterialsMineralogy and Gemology Studies