同步辐射红外反射率研究金属有机骨架的介电性质
Dielectric Properties of Metal-Organic Frameworks Probed via Synchrotron Infrared Reflectivity
摘要：
我们提出了一组局部多晶沸石咪唑基金属有机框架（MOF）材料在扩展红外光谱区的频率依赖性（动态）介电响应。使用同步辐射FTIR光谱的镜面反射，结合密度泛函理论（DFT）计算，我们已经揭示了详细的结构-性能的趋势太赫兹区域介电响应框架孔隙率和结构密度。这项工作表明，MOFs不仅是低\k{appa}电子应用的有前途的候选材料，而且也可能是太赫兹（THz）应用的先驱，如下一代宽带通信技术。
英文摘要：
We present the frequency-dependant (dynamic) dielectric response of a group of topical polycrystalline zeolitic imidazolate-based metal-organic framework (MOF) materials in the extended infrared spectral region. Using synchrotron-based FTIR spectroscopy in specular reflectance, in conjunction with density functional theory (DFT) calculations, we have revealed detailed structure-property trends linking the THz region dielectric response to framework porosity and structural density. The work demonstrates that MOFs are promising candidate materials not only for low-\k{appa} electronics applications but could also be pioneering for terahertz (THz) applications, such as next-generation broadband communications technologies.
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