Research Library

Premium Low‐temperature synthesis and particle‐size control in yttrium‐based phosphors
Author(s)
Ravichandran D.,
Roy Rustum,
White William B.
Publication year1997
Publication title
journal of the society for information display
Resource typeJournals
PublisherBlackwell Publishing Ltd
Abstract— Yttrium‐based phosphors: Y 2 O 3 :Eu +3 , Y 2 O 3 :Tb +3 , Y 2 SiO 5 :Eu +3 , Y 2 SiO 5 :Tb +3 , and Y 3 Al 5 O 12 :Eu +3 , Y 3 Al 5 O 12 :Tb +3 have been made by sol‐gel processes via organic precursors. In all the compositions, transparent non‐crystalline xerogels were reacted either by dry firing or by hydrothermal reaction. At temperatures of 600–650°C, the gels reacted to single‐phase well‐crystallized anhydrous compounds as shown by powder x‐ray diffraction. Luminescent emission measurements are presented for all the rare‐earth‐activated yttrium‐based compounds. Scanning electron microscopy reveals a particle size of <0.2 μm with a morphology of loose aggregates in the case of Eu‐doped samples.
Subject(s)analytical chemistry (journal) , anhydrous , chemical engineering , chemistry , chromatography , composite material , crystallography , diffraction , doping , engineering , geology , hydrothermal circulation , hydrothermal synthesis , luminescence , materials science , metallurgy , mineralogy , oceanography , optics , optoelectronics , organic chemistry , oxide , particle (ecology) , particle size , phase (matter) , phosphor , physics , powder diffraction , scanning electron microscope , tetragonal crystal system , yttrium
Language(s)English
SCImago Journal Rank0.578
H-Index52
eISSN1938-3657
pISSN1071-0922
DOI10.1889/1.1985138

Seeing content that should not be on Zendy? Contact us.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here