Photoluminescence properties of γ-Ca3(PO4)2:Sm3+ prepared under high-pressure and high-temperature conditions
文献类型：期刊论文
| 作者 | Weihong Xue; Shuangmeng Zhai; Shiqing Xu |
| 刊名 | Optical Materials
 |
| 出版日期 | 2015 |
| 卷号 | 45页码:219-223 |
| 关键词 | Photoluminescence γ-ca3(Po4)2:sm3+ wled concentration Quenching |
| 英文摘要 | γ-Ca3(PO4)2:Sm3+ samples were synthesized under high-pressure and high-temperature conditions. The samples were characterized by X-ray diffraction measurements. The excitation and emission spectra and fluorescence decay curves of synthesized samples were collected to study the photoluminescence properties. The excitation spectra of γ-Ca3(PO4)2:Sm3+ exhibit a series of narrow peaks attributed to the typical f–f transition of Sm3+. The emission spectra of γ-Ca3(PO4)2:Sm3+ compose of four bands attributed to transitions from 4G5/2 excited state to 6HJ/2 (J = 5, 7, 9 and 11) ground states of Sm3+. The average decay lifetimes were obtained by fitting the decay curves for 6H7/2 level of Sm3+ emission using a double exponential function. The photoluminescent spectra of γ-Ca3(PO4)2:Sm3+show that the samples belong to a red-emitting phosphor and can be pumped in the near ultraviolet light region, which can easily be applied for NUV LED chips and thus in WLEDs. There exists a concentration quenching of Sm3+ in γ-Ca3(PO4)2:Sm3+ samples. The critical concentration of Sm3+ in γ-Ca3(PO4)2 is about 1.0 mol%. |
| 语种 | 英语 |
| 源URL | [http://ir.gyig.ac.cn/handle/42920512-1/9585]  |
| 专题 | 地球化学研究所_地球内部物质高温高压实验室 |
| 作者单位 | 1.College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China 2.Key Laboratory of Orogenic Belts and Crustal Evolution, MOE; School of Earth and Space Sciences, Peking University, Beijing 100871, China 3.Key Laboratory of High-Temperature and High-Pressure Study of the Earth’s Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China |
| 推荐引用方式 GB/T 7714 | Weihong Xue；Shuangmeng Zhai；Shiqing Xu. Photoluminescence properties of γ-Ca3(PO4)2:Sm3+ prepared under high-pressure and high-temperature conditions[J]. Optical Materials,2015,45:219-223. |
| APA | Weihong Xue；Shuangmeng Zhai；Shiqing Xu.(2015).Photoluminescence properties of γ-Ca3(PO4)2:Sm3+ prepared under high-pressure and high-temperature conditions.Optical Materials,45,219-223. |
| MLA | Weihong Xue；Shuangmeng Zhai；Shiqing Xu."Photoluminescence properties of γ-Ca3(PO4)2:Sm3+ prepared under high-pressure and high-temperature conditions".Optical Materials 45(2015):219-223. |
入库方式： OAI收割
来源：地球化学研究所
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