A colorimetric optical thermometry of host-sensitized Pr3+-doped niobate phosphors based on electronic-rich-site strategy.
Sign Up to like & getrecommendations! Published in 2021 at "Dalton transactions"
DOI: 10.1039/d1dt00933h
Abstract: Most praseodymium-doped red-emitting phosphors need high-temperature synthesis conditions with a reducing atmosphere. The niobate matrix selected in this work provides a sufficient electron-rich-site environment for praseodymium through charge migration, and praseodymium can be self-reduced in… read more here.
Keywords: pr3; temperature; pr3 ions; rich site ... See more keywords
Enhanced mid-infrared emission of Pr3+ ions in solids through a "3-for-1" excitation process - quantified.
Sign Up to like & getrecommendations! Published in 2021 at "Optics express"
DOI: 10.1364/oe.441516
Abstract: Evidence is presented that a "three-for-one" process based on two cross-relaxations between Pr3+ ions efficiently populates the mid-infrared-emitting 3H5 manifold in a Pr3+-doped low-maximum-phonon-energy host. The concentration dependence of infrared fluorescence spectra and lifetimes of… read more here.
Keywords: pr3 ions; process; mid infrared; excitation ... See more keywords