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Polymers 2016, 8(10), 350; doi:10.3390/polym8100350

Synthesis of Novel Cobalt-Containing Polysilazane Nanofibers with Fluorescence by Electrospinning

Institute for Advanced Ceramics, School of Materials Science and Engineering, Harbin Institute of Technology, Yikuang Street, Nangang District, Harbin 150001, China
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Academic Editor: Mohamed Khayet
Received: 15 August 2016 / Revised: 3 September 2016 / Accepted: 19 September 2016 / Published: 17 October 2016
(This article belongs to the Special Issue Conjugated Polymers 2016)
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Abstract

Emission in the nanostructured materials is important in micro/nanoelectronic devices. We report here a strategy for the processing of micron and submicron fibers from a cobalt-containing hyperbranched polysilazane by electrospinning. The electrospun nanofibers have uniform average diameters of ~600 nm and lengths of ~10 μm. The photophysical properties of polycobaltsilazane (PCSN) are studied using UV-VIS and photoluminescence spectroscopies. PCSN fibers display a series of emission peaks between 490 and 615 nm. The Co(II) doping into polysilazane leads to the emission from 465 to 415 nm. The emission wavelength shift of Co(III)-containing polysilazane is specific under 340 and 470 nm excitation wavelengths, respectively, while it is not observed with metal-free polysilazane. Thermogravimetric analysis-Differentical thermal analysis (TGA-DTA) profiles also show good thermostability of the PCSN fibers at 800 °C under Ar atmosphere. The use of PCSN offers both enhanced ceramic yields against ~5 wt % starting material and the fluorescence intensity of polymeric fibers. View Full-Text
Keywords: polycobaltsilazane; electrospinning; nanofibers; luminescence polycobaltsilazane; electrospinning; nanofibers; luminescence
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MDPI and ACS Style

Zhang, Q.; Jia, D.; Yang, Z.; Duan, X.; Chen, Q.; Zhou, Y. Synthesis of Novel Cobalt-Containing Polysilazane Nanofibers with Fluorescence by Electrospinning. Polymers 2016, 8, 350.

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