Lanthanide Metal–Organic Framework Microrods: Colored Optical Waveguides and Chiral Polarized Emission. (31st May 2017)

• Record Type: Journal Article
• Authors: Yang, Xiaogang; Lin, Xianqing; Zhao, Yibing; Zhao, Yong Sheng; Yan, Dongpeng
• Is Part Of: Angewandte Chemie. Volume 129:Number 27(2017)
• Page Start: 7961
• Page End: 7965
• Publication Date: 2017-05-31
• Subjects: Metall-organische Gerüste -- Mikrostäbe -- Polarisierte Emission -- Wellenleiter; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201703917
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: 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.