4.8 Article

Metal Inorganic-Organic Complex Glass and Fiber for Photonic Applications

Journal

CHEMISTRY OF MATERIALS
Volume 34, Issue 5, Pages 2476-2483

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.chemmater.2c00240

Keywords

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Funding

  1. National Natural Science Foundation of China [52050410326, 51772270, 61775192]
  2. National Key Research and Development Program of China [2018YFB1107200, 2020YFB1805900]
  3. Open funds of State Key Laboratory of Precision Spectroscopy, East China Normal University
  4. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics
  5. Chinese Academy of Sciences
  6. Fundamental Research Funds for the Central Universities

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This study reports a new type of glass material that can be fabricated into large-sized bulk glass with photonic functionalities through appropriate temperature treatments. Doping with organic dyes enables photoluminescence, and the material can also serve as a host for inorganic phosphors to develop high-power white light-emitting diodes.
The vitrification of hybrid materials (e.g., metal-organic frameworks and coordination polymers) is considered as the fourth generation of glass. To extend the hybrid glass family with photonic functionalities, we report a crystalline metal inorganic-organic complex (MIOC) (i.e., ZnCl2(HbIm)(2), HbIm = benzimidazole) with a one-dimensional hydrogen bonded chain that can be melted to a stable liquid at elevated temperatures and subsequently quenched to form a large-sized bulk glass under ambient atmosphere with excellent thermal and chemical stability. Benefiting from the moderate glass-forming ability of the MIOC, we succeeded in the fabrication of the first MIOC glass fibers with diameters of 7-200 mu m. The doping of the MIOC fibers by organic dyes results in anisotropic photoluminescence. Furthermore, the as-prepared MIOC bulk glass can be employed as the stable and inert host for inorganic phosphors, which leads to the development of a novel phosphor-in-MIOC glass composite and enables the fabrication of high-power white light-emitting diodes. Our findings make the ZnCl2(HbIm)(2)-based MIOC glass a promising material for photonic applications.

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