| Literature DB >> 28653812 |
Xuanmin Wu1, Dandan Xu1, Wanwen Li1, Ting Wang1, Liwei Cao1, JianXin Meng1.
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.Keywords: BaZrSi3O9:Cr3+; near infrared; phosphor
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Year: 2017 PMID： 28653812 DOI： 10.1002/bio.3359
Source DB: PubMed Journal: Luminescence ISSN： 1522-7235 Impact factor: 2.464