双沉试剂辅助深蓝色发射酸盐和近白色氧化物基础的发光材料
Mridula Ghosh1, Bibhuti B Nayak1
1Department of Ceramic Engineering, National Institute of Technology Rourkela, PIN-769008, Odisha, India. bbnayak@nitrkl.ac.in.
Dalton transactions (Cambridge, England : 2003)
|May 29, 2024
概括
研究人员使用双沉试剂开发了新型深蓝发射酸盐和可调节的近白氧化物发光材料. 这些添加材料具有很长的衰变时间和高量子产量,适合用于照明应用.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的阴影是什么意思
背景情况:
- 开发高效的发光材料对于先进的照明技术至关重要.
- 添加材料为各种应用提供可调节的光学性能.
- 酸盐和氧化物宿主是创造新的有希望的平台.
研究的目的:
- 合成和描述双沉试剂辅助基深蓝色发射玻酸盐和近白色氧化物发光材料.
- 为了研究烧温度和保持时间对相位形成和发光特性的影响.
- 评估这些材料在照明行业应用中的潜力.
主要方法:
- 酸盐和氧化物粉末的合成,使用水性酸和氨溶液作为沉试剂.
- 使用X射线衍射 (XRD),富里埃转换红外光谱 (FTIR) 和拉曼光谱进行了表征.
- 光发光谱学用于分析辐射行为,CIE坐标,平均寿命和量子产量.
主要成果:
- 形成以YBO3为基础的酸盐相,具有深蓝色的发射,以及以YAG为基础的氧化物相,具有可调节的浅蓝色至近白色的发射.
- 1000-1400°C的化产生了YBO3作为初级阶段,而1500°C有利于YAG的形成.
- 观察到开发材料的平均寿命长 (788-891 ns) 和高量子产量 (61-77%).
结论:
- 双沉试剂有效地促进了基于Ce的酸和氧化物发光材料的合成.
- 合成的材料呈现出有希望的深蓝色和可调的近白色辐射,具有出色的发光性能.
- 这些发现表明,开发的酸盐和氧化在照明行业的潜在应用.
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