Lanthanide Metal-Organic Framework Microrods: Colored Optical Waveguides and Chiral Polarized Emission
Lanthanide Metal-Organic Framework Microrods: Colored Optical Waveguides and Chiral Polarized Emission
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镧系金属有机骨架微棒：彩色光波导和手性偏振发射
DOI：
10.1002/anie.201703917
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Yan Dongpeng
中科院分区：
文献类型：
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作者：
Yang Xiaogang;Lin Xianqing;Zhao Yibing;Zhao Yong Sheng;Yan Dongpeng
镧系金属有机骨架（Ln - MOFs）由于其结构的可调节性和广泛的光功能应用而受到广泛关注。然而，在微/纳米尺寸上具有良好光子性能的Ln - mof的成功例子仍然非常有限。在这里，1,3,5 -苯三羧酸（BTC）和镧系离子的自组装提供了同结构的晶体Ln - mof。Tb‐BTC、Eu@Tb‐BTC和Eu‐BTC具有一维微棒形态、高光致发光量子产率和不同的发射颜色（绿色、橙色和红色）。空间PL分辨光谱证实了Ln - MOF微棒在传播过程中具有低波导损耗系数（0.012≈0.033 dB μm−1）的光波导效应。此外，这些微棒具有高各向异性的线性和手性极化光发射特性。
Lanthanide metal–organic frameworks (Ln‐MOFs) have received much attention owing to their structural tunability and widely photofunctional applications. However, successful examples of Ln‐MOFs with well‐defined photonic performances at micro‐/nanometer size are still quite limited. Herein, self‐assemblies of 1,3,5‐benzenetricarboxylic acid (BTC) and lanthanide ions afford isostructural crystalline Ln‐MOFs. Tb‐BTC, Eu@Tb‐BTC, and Eu‐BTC have 1D microrod morphologies, high photoluminescence (PL) quantum yields, and different emission colors (green, orange, and red). Spatially PL resolved spectra confirm that Ln‐MOF microrods exhibit an optical waveguide effect with low waveguide loss coefficient (0.012≈0.033 dB μm−1) during propagation. Furthermore, these microrods feature both linear and chiral polarized photoemission with high anisotropy.