Control of photoluminescence in Ca 3–3 x  /7 Y 2 x  /7 (PO 4 ) 2 :Eu 2+  phosphors by migration of the dopant | Zendy

Han Jin | Zendy; Zhou Wenli | Zendy; Tang Miao | Zendy; Lian Shixun | Zendy

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Control of photoluminescence in Ca 3–3 x /7 Y 2 x /7 (PO 4 ) 2 :Eu 2+ phosphors by migration of the dopant

Author(s) -

Han Jin,

Zhou Wenli,

Tang Miao,

Lian Shixun

Publication year - 2015

Publication title -

physica status solidi (rrl) – rapid research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.786

H-Index - 68

eISSN - 1862-6270

pISSN - 1862-6254

DOI - 10.1002/pssr.201510220

Subject(s) - photoluminescence , phosphor , dopant , crystallography , ion , luminescence , solid state , spectral line , cationic polymerization , solid solution , chemistry , mineralogy , materials science , analytical chemistry (journal) , doping , physics , optoelectronics , metallurgy , organic chemistry , chromatography , astronomy

A series of Ca 3–3 x /7 Y 2 x /7 (PO 4 ) 2 :Eu 2+ phosphors were synthesized by conventional solid‐state reaction. The photoluminescence spectra elucidate that the evolution of emission hue from violet–blue to blue–greenish could be realized by incorporating Y 3+ ions. The aliovalent substitution of Y 3+ for Ca 2+ forms cationic vacancies (h denotes a vacancy) at Ca(4) site according to the formula 3Ca 2+ = 2Y 3+ + h, and then facilitates the migration of dopant Eu 2+ from Ca(4) site to other sites in host lattice. (© 2015 WILEY‐VCH Verlag GmbH &Co. KGaA, Weinheim)

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