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毕业论文网 > 任务书 > 材料类 > 材料科学与工程 > 正文

BaLaMgNbO6:Eu红色荧光粉的制备及性能研究任务书

 2020-05-01 08:40:20  

1. 毕业设计(论文)的内容和要求

白色发光二极管(白光led)作为一种新型的固态照明器件以其高光效、低能耗、长寿命及环境友好等特点已在平板显示背光源、汽车前灯、道路照明等领域获得了初步应用。

目前白光led获得白光发射最有效的途径仍是基于蓝光(~460 nm)或近紫外光(~390 nm)的荧光粉转换法,其工艺简单、成本低,占据市场主导地位。

但目前商用红粉面临着化学稳定性差(猝灭温度低)、色纯度与发光效率低等问题,特别是适用于近紫外芯片的红粉,其发光强度不足蓝粉与绿粉的八分之一。

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2. 参考文献

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3. 毕业设计(论文)进程安排

起讫日期 设计(论文)各阶段工作内容 备 注 11月25号到 1月18号 查阅国内外相关文献,掌握制备盐荧光粉的工艺方法 1月19号到 2月24号 放寒假 2月25号到 3月25号 探讨荧光粉的制备工艺 3月26号到 4月30号 制备不同浓度Eu掺杂的BaLaMgNbO6荧光粉 5月1号到 5月31号 使用相关软件处理分析实验数据,结合理论知识总结实验结果 6月1号到 6月15号 写毕业论文,准备答辩

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