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Breakdown of Crystallographic Site Symmetry in Lanthanide‐Doped NaYF 4 Crystals
Author(s) -
Tu Datao,
Liu Yongsheng,
Zhu Haomiao,
Li Renfu,
Liu Liqin,
Chen Xueyuan
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201208218
Subject(s) - lanthanide , crystallography , photoluminescence , doping , symmetry (geometry) , crystal (programming language) , spectroscopy , rare earth , resolution (logic) , materials science , chemistry , physics , condensed matter physics , computer science , mineralogy , mathematics , geometry , optoelectronics , quantum mechanics , programming language , ion , artificial intelligence
High‐resolution photoluminescence spectroscopy employing Eu 3+ as the structural probe unambiguously revealed a universal breakdown of crystallographic site symmetry in lanthanide‐doped disordered crystals. The spectroscopic site symmetries of Eu 3+ descend from crystallographic O h to C s (or C 2 ) in α‐NaYF 4 , and from crystallographic C 3 h to C s in β‐NaYF 4 , which were further verified by crystal‐field level fitting.