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Crystal growth and luminescent properties of Eu activated strontium iodide crystals
Author(s) -
Zhang Ye,
Shi Hongsheng,
Shu Kangying,
Qin Laishun,
Ren Guohao
Publication year - 2012
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201200060
Subject(s) - luminescence , differential scanning calorimetry , crystal (programming language) , materials science , iodide , strontium , melting point , doping , analytical chemistry (journal) , crystal growth , strontium carbonate , crystallography , mineralogy , chemistry , optoelectronics , inorganic chemistry , composite material , physics , thermodynamics , programming language , organic chemistry , chromatography , computer science
SrI 2 :Eu crystals with 1.5 inch diameter were grown by the vertical Bridgman method. The melting point of SrI 2 doped with 5 at % Eu grown feedstock was determined to be 526 °C by differential scanning calorimetry (DSC). XRD proved Pbca structure of SrI 2 when the SrI 2 :Eu sample was packaged with polyethylene film in air. The luminescent properties of SrI 2 :Eu crystals are presented. Under the excitation of UV light or X‐ray, the crystals exhibit a single luminescent peak centered at 435 nm. The decay time of SrI 2 :5%Eu crystal excited by UV were fitted to be 1.9 μs. (© 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)