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Synthesis and luminescence of novel near‐infrared emitting BaZrSi 3 O 9 :Cr 3+ phosphors
Author(s) -
Wu Xuanmin,
Xu Dandan,
Li Wanwen,
Wang Ting,
Cao Liwei,
Meng JianXin
Publication year - 2017
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.3359
Subject(s) - phosphor , luminescence , infrared , analytical chemistry (journal) , materials science , chemistry , optoelectronics , physics , optics , environmental chemistry
The BaZrSi 3 O 9 :Cr 3+ phosphors were prepared by a high temperature solid state method. Their structures were confirmed with XRD and their luminescence properties were investigated. Under excitation at 455 nm, BaZrSi 3 O 9 :Cr 3+ phosphors exhibited a broad near infrared emission band peaked at 800 nm, which was assigned to the 4 T 2 → 4 A 2 transition of Cr 3+ . The near infrared emission intensity reached a maximum at Cr 3+ concentration of 0.7%. There was a concentration quenching phenomenon of Cr 3+ in BaZrSi 3 O 9 matrix and the corresponding concentration quenching mechanism was investigated. With efficient near infrared emission in the range of 700–1000 nm, BaZrSi 3 O 9 :Cr 3+ phosphors may find applications in solar energy conversion.