Pink-emitting RbBaBP2O8:Sm phosphor with diamondoid structure and high thermostability

Microsized borophosphate-based phosphors of RbBaBP2O8:Sm were successfully prepared in this research. X-ray diffraction investigation proves that all phosphors are single phases belonging to the RbBaBP2O8-type diamondoid structure. According to the XPS, luminescence, and optical decay time investiga...

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Vydáno v:Ceramics international Ročník 47; číslo 15; s. 21828 - 21836
Hlavní autoři: Yang, Dan, Fang, Zhenyu, Zheng, Youkui, Xiang, Yuefei, Song, Ruitong, Yang, Tongsheng, Song, Jialiang, Zhu, Jing
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier Ltd 01.08.2021
Témata:
Borophosphate
Content quenching
Photoluminescence
Samarium
Thermal quenching
Borophosphate
Samarium
Thermal quenching
Content quenching
Photoluminescence
ISSN:0272-8842, 1873-3956
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Shrnutí:Microsized borophosphate-based phosphors of RbBaBP2O8:Sm were successfully prepared in this research. X-ray diffraction investigation proves that all phosphors are single phases belonging to the RbBaBP2O8-type diamondoid structure. According to the XPS, luminescence, and optical decay time investigations, there are the co-existence of the divalent and trivalent samarium ions in the RBBP matrix. Upon near-ultraviolet (401 nm) irradiation, the characteristic transitions of both Sm3+ and Sm2+ ions contribute to pink light emission. The content quenching and thermal quenching mechanisms are studied. The RbBaBP2O8:Sm phosphor shows high thermal stability, good color stability, and low correlated color temperature, indicating its promising application in warm white LEDs.
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2021.04.200