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来自西兰碳化聚合物点的束模块化触发时间依赖光色

Meichao Shi¹, Qian Gao¹, Jun Rao¹

¹Beijing Key Laboratory of Lignocellulosic Chemistry, MOE Engineering Research Center of Forestry Biomass Materials and Bioenergy, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China.

Journal of the American Chemical Society

|December 6, 2023

概括

研究人员从西兰废料中制造出独特的碳化聚合物点,为先进的应用实现了时间依赖光色 (TDPC). 这一突破为新型发光材料提供了可持续的途径.

科学领域:

材料科学
有机化学
纳米技术

背景情况:

在有机材料中实现时间依赖的光色 (TDPC) 是由于非辐射衰变和三重状态调制而具有挑战性.
从废物中开发可持续材料是关键的环境和经济目标.

研究的目的:

使用纸厂废弃物西兰制造碳化聚合物点 (CPD) 以聚合触发室温光 (RTP).
设计可调节的三重能量级别的CPD,并实现稳定的,依赖时间的颜色发射.
探索这些新光材料在成像和安全方面的应用.

主要方法:

西兰被加工成碳化聚合物点 (CPD).
CPD被限制在二氧化矩阵内以激活特定的发射中心.
包括寿命和色彩演变在内的光特性被描述.
通过浸泡在水中进行稳定性测试.
在水凝成像和信息加密中展示了应用.

主要成果:

来自西兰的CPD表现出聚合触发的室温光 (RTP).
局限性CPD显示共存的蓝色 (425.6毫秒寿命) 和绿色 (1506毫秒寿命) 发射中心,使时间依赖的光色 (TDPC) 从蓝色演变为绿色.
在水中,TDPC的性能保持稳定一个多月.
在水凝位置/变形成像和动态信息加密/防伪方面证明了成功的应用.

结论:

基于西兰的CPD提供了一种可持续的途径,以实现可调和稳定的时间依赖光色 (TDPC).
开发的材料显示出在成像,安全和防伪领域的先进应用的巨大潜力.
这项工作强调了利用造纸厂废弃物制造高性能功能材料的价值.

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