合成温度对MoO的结构,形态和光学特性的影响
A V Avani1, R B Chrisma1, E I Anila2
1Department of Physics and Electronics, CHRIST (Deemed to be University), Bengaluru, Karnataka, 560029, India.
Journal of fluorescence
|June 8, 2023
概括
三氧化物 (MoO3) 纳米被通过热水合成,产生蓝色和紫蓝色光. 这些MoO3纳米显示了LED和光成像应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 固态化学 固态化学
背景情况:
- 三氧化物 (MoO3) 纳米材料越来越多地被认为是光电子和生物医学领域的实用性.
- 开发高效和稳定的光剂对于照明和成像技术的进步至关重要.
研究的目的:
- 为了合成蓝色和紫蓝色发光的三氧化 (MoO3) 纳米.
- 研究合成纳米的结构,形态和光学特性.
- 评估它们适用于LED和光成像应用的适用性.
主要方法:
- 在不同温度 (100°C,150°C,200°C) 的水热合成.
- 用X射线衍射 (XRD) 和拉曼光谱进行结构分析.
- 微流分析的威廉姆森-霍尔方法.
- 场发射扫描电子显微镜 (FESEM) 用于形态学.
- 对于光学属性而言,UV-Vis光谱学和光发光学 (PL).
主要成果:
- 通过XRD和拉曼光谱证实了MoO3稳定的正合相的形成.
- 通过FESEM观察到的纳米类类似形态.
- 随着合成温度的增加,带隙的减少,使用Tauc图分析.
- 归因于Mo5+缺陷状态的光发光辐射,导致蓝色和紫蓝光辐射.
- CIE坐标证实了蓝色和紫蓝色的排放特征.
结论:
- 水热合成产生稳定的三氧化 (MoO3) 纳米,具有可调节的光学特性.
- 合成的MoO3纳米体显示出有前途的蓝色和紫色蓝光发射.
- 这些材料非常适合未来在发光二极管 (LED) 和光成像中的应用.
相关概念视频
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