四协调 ((II) 化物与多模热色发光用于防伪和加密
Zhaohui Huang1, Xiaoli Wang1, Peng Du1
1Shandong Provincial Key Laboratory of Monocrystalline Silicon Semiconductor Materials and Technology, College of Chemistry and Chemical Engineering, Dezhou University, Dezhou, Shandong Province 253023, China.
Inorganic chemistry
|May 30, 2025
概括
这项研究合成了一种 ((II) 化物晶体,其颜色与温度发生独特,可逆的变化. 这一发现使得先进的温度响应防伪和数据加密技术成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 晶体学 晶体学是指结晶学.
背景情况:
- ((II) 化物以其结构灵活性和光学特性而闻名.
- 在刺激下多模发光色变化的材料很少见.
- 开发用于防伪和数据安全的新材料至关重要.
研究的目的:
- 为了合成和表征一种新的零维 (II) 化物, (C5H14NO) 2MnBr4.
- 为了研究其独特的热色和发光特性.
- 探索其在防伪和信息保护方面的潜在应用.
主要方法:
- (C5H14NO) 2MnBr4.4的单晶合成方法
- 温度依赖的X射线衍射研究相位过渡.
- 可变温度发光光谱学用于分析辐射特性.
主要成果:
- 在268 K.观察到可逆的秩序-混乱阶段过渡.
- 晶体呈现出一个对称的绿色-黄色-色-红色-色-黄色-绿色发光,从80-420K切换.
- 对于低温阶段 (Mn(II) d-d过渡和自我陷入的刺激子) 和高温阶段 (自我陷入的刺激子的捕获和脱落) 确定了不同的发光机制.
结论:
- 合成的 (C5H14NO) 2MnBr4晶体表现出异常的热色发光.
- 它的独特特性促进了对温度敏感的先进防伪标签和多层加密代码的开发.
- 这项研究为安全应用设计具有可调节发光的金属化物提供了新的途径.
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