Luminescent properties of novel red‐emitting M7Sn(PO4)6:Eu3+ (M = Sr,Ba) for light‐emitting diodes |
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| Authors: | Guo Feng Weihui Jiang Jianmin Liu Cong Li Quan Zhang |
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| Institution: | 1. National Engineering Research Center for Domestic & Builing Ceramics, Jingdezhen Ceramic Institute, Jingdezhen, China;2. Department of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen, China;3. Jiangxi Key Laboratory of Advanced Materials, Jingdezhen, China |
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| Abstract: | Novel red‐emitting phosphors, Eu3+‐activated M7Sn(PO4)6 (M = Sr, Ba), were synthesized at 1200°C by conventional solid‐state reaction method. The luminescent properties of M7Sn(PO4)6:Eu3+ (M = Sr, Ba) phosphors were investigated, and the critical concentration of the activator (Eu3+) concentration were found to be 0.175 mol and 0.21 mol per formula unit for Sr7‐xSn(PO4)6:xEu3+ and Ba7‐xSn(PO4)6:xEu3+, 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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| Keywords: | barium tin phosphate Eu3+ luminescence red phosphors strontium tin phosphate |
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