基于矿的NIR光触发绿色发射用于光学温度计和未来的分子逻辑门应用
Ishant Kumar1,2, Avinash Kumar1, Sandeep Kumar1
1Department of Physics and Photonics Science, National Institute of Technology, Hamirpur, 177005, H.P, India.
Journal of fluorescence
|November 23, 2024
概括
这项研究合成了用于光学温度计和分子逻辑门的新Er3+和Yb3+合CaTiO合. 该材料表现出高效的上转换发光和有前途的传感能力.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 发光的光度是非常的低.
背景情况:
- 酸 (CaTiO3) 是的有希望的宿主材料.
- 稀土离子兴奋剂 (Er3+,Yb3+) 可以诱导理想的光学特性,如上转换发光.
- 在光学温度计和分子逻辑门中的应用需要具有可调和敏感光学响应的材料.
研究的目的:
- 为了合成和表征Er3+和Yb3+合CaTiO酸.
- 为了研究它们的潜力,使用温度依赖的发光技术进行光学温度测量.
- 探索它们对分子逻辑门应用的可行性.
主要方法:
- 溶液燃烧合成用于制备.
- 用于结构分析的X射线粉末衍射 (XRD).
- 场辐射扫描电子显微镜 (FESEM) 用于形态表征.
- 光发光谱学用于光学属性评估.
- 光强度比 (FIR) 方法用于温度传感.
主要成果:
- 成功合成了Er3+和Yb3+杂的CaTiO.
- 在980nm激发下观察Er3+的绿色和红色上升转换排放.
- 证明了温度传感能力,相对灵敏度高达1.66%K-1.
- 使用热和红外激发实现了AND (~170.86%) 和INHIBIT (~72.28%) 逻辑门的高切换比率.
结论:
- Er3+ 和 Yb3+ 合 CaTiO3 的光剂对上转换的发光效果很好.
- 合成的材料显示出非接触式光学温度计的巨大潜力.
- 这种是开发先进分子逻辑设备的可行候选者.
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