Wu X, Xu D, Li W, Wang T, Cao L, Meng J. Synthesis and luminescence of novel near-infrared emitting BaZrSi
3 O
9 :Cr
3+ phosphors.
LUMINESCENCE 2017;
32:1554-1560. [PMID:
28653812 DOI:
10.1002/bio.3359]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Revised: 05/02/2017] [Accepted: 05/08/2017] [Indexed: 11/12/2022]
Abstract
The BaZrSi3 O9 :Cr3+ 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, BaZrSi3 O9 :Cr3+ phosphors exhibited a broad near infrared emission band peaked at 800 nm, which was assigned to the 4 T2 →4 A2 transition of Cr3+ . The near infrared emission intensity reached a maximum at Cr3+ concentration of 0.7%. There was a concentration quenching phenomenon of Cr3+ in BaZrSi3 O9 matrix and the corresponding concentration quenching mechanism was investigated. With efficient near infrared emission in the range of 700-1000 nm, BaZrSi3 O9 :Cr3+ phosphors may find applications in solar energy conversion.
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