Room-temperature sintered metal-organic framework nanocrystals: A new type of optical ceramics

室温烧结的金属—有机框架纳米晶: 一种新型光学陶瓷


光学陶瓷是一种透明的特种陶瓷, 可兼备单晶的高稳定性和玻璃、 流体和其他非晶材料的大尺寸的优点, 是有潜力的激光增益介质. 因为对晶体尺寸和对称性有严格要求, 而且需要高温烧结过程, 只有少数无机非金属材料可用于制备光学陶瓷. 本文报道了一种由配位聚合物(或称金属—有机框架)组成的新型陶瓷. 通过简单地降低溶剂挥发速度, MAF-4(即SOD型二甲基咪唑锌, 也称ZIF-8)的纳米晶即可融合形成致密的陶瓷状块体, 甚至具有毫米级尺寸和高达84%可见光透过率. 该金属—有机光学陶瓷MOOC-1可以负载荧光染料sulforhodamine 640并保持其发光特性, 包括很高的量子产率63.6%和极低的放大自发辐射阈值31 μJ cm-2. 其他几种金属—有机框架的纳米晶也可以在类似条件下融合成陶瓷或光学陶瓷. 考虑到金属—有机框架的结构和功能多样性, 金属—有机陶瓷不但可用作光学器件, 还可能在吸附、 分离、 传感等相关领域展现潜力.


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This work was supported by the National Natural Science Foundation of China (91622109, 21371181, and 21473260).

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Correspondence to Jie-Peng Zhang 张杰鹏.

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Jia-Wen Ye was born in 1990. He is a PhD candidate of inorganic chemistry at Sun Yat-Sen University (SYSU). His research focuses on optical properties of MOFs.

Jie-Peng Zhang obtained his BSc in 2000 and PhD in 2005 at SYSU, and was a JSPS postdoc at Kyoto University from 2005 to 2007. He joined SYSU as an associate professor in 2007, and became a professor in 2011. His research focuses on the chemistry and applications of MOFs.

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Ye, JW., Zhou, X., Wang, Y. et al. Room-temperature sintered metal-organic framework nanocrystals: A new type of optical ceramics. Sci. China Mater. 61, 424–428 (2018).

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