| 高娟娟,赵海帆,覃瑞琪,苏家仪,朱敏.Yb3+/Er3+双掺杂白磷钙石荧光骨修复材料的制备及其发光性能研究[J].有色金属材料与工程,2021,42(5):23-29. |
| Yb3+/Er3+双掺杂白磷钙石荧光骨修复材料的制备及其发光性能研究 |
| Study on Preparation and Photoluminescence Properties of Yb3+/Er3+ Co-doped Whitlockite Bone Repair Material |
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| DOI：10.13258/j.cnki.nmme.2021.05.004 |
| 中文关键词: 稀土元素 白磷钙石 上转换发光 骨修复 |
| 英文关键词:rare earth element whitlockite up-conversion luminescence bone repair |
| 基金项目:国家自然科学基金资助项目（52072246） |
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| 中文摘要: |
| 白磷钙石（whitlockite，WH）是人体骨组织中含量第二的骨矿物质，具有良好的生物活性和诱导成骨性能。WH结构的荧光粉由于其结构类型多样、较低的声子能量以及可调谐的光致发光，被广泛应用于LED灯等领域。采用化学沉淀法制备了含不同物质的量比的Yb3+和Er3+共掺杂白磷钙石的上转换发光纳米材料(Yb3+/Er3+-WH)，在水溶液中有良好的分散性。在980 nm的激光器的激发下，不同比例掺杂的Yb3+/Er3+-WH纳米颗粒均可发射波长为530、550 nm的绿光和660 nm的红光。由测得的荧光光谱结果可知，当Yb3+和Er3+的物质的量比为10∶1时，上转换发光强度最高，有较高的能量传递效率。Yb3+/Er3+ -WH粉体作为具有成骨活性的荧光标记材料在骨修复领域具有一定的应用潜力。 |
| 英文摘要: |
| Whitlockite (WH) is the second bone mineral in human bone tissue, and shows remarkable biological activity and osteoinductivity. Phosphors with WH structure are widely used in LED lamps and other fields because of their various types of structure, low phonon energy and tunable photoluminescence. Yb3+ and Er3+ co-doped WH up-conversion luminescent nano materials (Yb3+/Er3+-WH) with different molar ratios of Yb and Er3+ were prepared by chemical precipitation method, and the materials showed good dispersion in aqueous solution. Under the excitation of 980 nm laser, Yb3+/Er3+-WH nanoparticles with different proportions could emit green light with the wavelengths of 530 and 550 nm and red light with the wavelengths of 660 nm. According to the results measured by fluorescence spectrum, when the molar ratio of Yb3+ to Er3+ is 10∶1, the up-conversion luminescence intensity is the highest and the energy transfer efficiency is relatively higher. The Yb3+/Er3+-WH powder shows certain application potential in the field of bone repair as a fluorescent marker material with osteogenic activity. |
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