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扭曲堆叠的MOF图案具有可定制的循环极化发光特性和加密应用

Xini Chu¹, Jingguo Li², Di Wang¹

¹State Key Laboratory of Precision and Intelligent Chemistry, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui, China.

Nature communications

|November 24, 2025

概括

研究人员开发了扭曲堆叠的金属有机框架 (MOF) 模式,用于增强循环极化发光 (CPL). 这一突破使高发光不对称系数和可定制的CPL用于先进的光学应用.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
光电学是指光电子产品.

背景情况:

光学活性金属有机框架 (MOFs) 对循环极化发光 (CPL) 显示出希望.
有限的发光不对称因素 (g_lum) 和缺乏图案阻碍了MOF的实际应用.
开发具有高g_lum和模式能力的MOF对于先进的光学设备至关重要.

研究的目的:

设计和制造具有高g_lum和可定制的CPL性能的扭叠MOF图案.
为了克服小g_lum的局限性,以及现有的光学活性MOF中缺乏模式.
为了使小型化手术视觉设备,信息加密和存储的发展.

主要方法:

使用了刷涂层,自下而上的异质上生长,以及扭曲堆叠技术.
使用预先对齐的Cu(OH) ₂纳米线 (NW) 模板创建了高度定向的MOF膜的二维 (2D) 可编程图案.
用光染料对MOF图案进行了功能化,并将第二个定向的MOF层作为相延缓器沉积起来.

主要成果:

在扭曲堆叠MOF模式中达到大约0.4的高发光不对称系数 (g_lum).
在制造的MOF模式中证明了可定制的CPL性能.
在可编程MOF模式中成功生成了手术视觉反应.

结论:

开发的策略可以制造任意的,可编程的光学主动MOF模式,并增强g_lum.
在MOF模式内精确调节CPL性能是可以实现的.
这种方法促进了微型手术器件和先进的信息存储解决方案的实施.

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