Luminescent properties of novel red‐emitting M<sub>7</sub>Sn(PO<sub>4</sub>)<sub>6</sub>:Eu<sup>3+</sup> (M = Sr, Ba) for light‐emitting diodes
Guo FengNational Engineering Research Center for Domestic & Builing Ceramics Jingdezhen Ceramic Institute Jingdezhen ChinaWeihui JiangDepartment of Material Science and Engineering Jingdezhen Ceramic Institute Jingdezhen ChinaJianmin LiuNational Engineering Research Center for Domestic & Builing Ceramics Jingdezhen Ceramic Institute Jingdezhen ChinaCong LiNational Engineering Research Center for Domestic & Builing Ceramics Jingdezhen Ceramic Institute Jingdezhen ChinaQuan ZhangNational Engineering Research Center for Domestic & Builing Ceramics Jingdezhen Ceramic Institute Jingdezhen China
2018en
ABI
Аннотация
Abstract Novel red‐emitting phosphors, Eu 3+ ‐activated M 7 Sn(PO 4 ) 6 (M = Sr, Ba), were synthesized at 1200°C by conventional solid‐state reaction method. The luminescent properties of M 7 Sn(PO 4 ) 6 :Eu 3+ (M = Sr, Ba) phosphors were investigated, and the critical concentration of the activator (Eu 3+ ) concentration were found to be 0.175 mol and 0.21 mol per formula unit for Sr 7‐ x Sn(PO 4 ) 6 : x Eu 3+ and Ba 7‐ x Sn(PO 4 ) 6 : x Eu 3+ , respectively. These phosphors presented red luminescence under the excitation of 395 or 465 nm, perfectly matching with the emissions wavelength of near‐ultraviolet (UV) light‐emitting diodes (LEDs) and InGaN blue LED.
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