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

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

Content Provider	Semantic Scholar
Author	Zhang, Qian Yang, Zhihua Duan, Xiaoming Chen, Qingqing Zhou, Yu
Copyright Year	2016
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.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.mdpi.com/2073-4360/8/10/350/pdf
Language	English
Access Restriction	Open
Subject Keyword	Amino Acids, Branched-Chain Bead Dosage Form Cobalt Cold Temperature Diameter (qualifier value) Digital television adapter Doping (semiconductor) Excitation Fluorescence Galaxy morphological classification Immunostimulating conjugate (antigen) List of semiconductor materials Nanofibers Nanostructured Materials Polymer Polymers Polyvinyl Chloride Semiconductors Silicon Solutions Spectroscopy, Near-Infrared TBX1 wt Allele Tissue fiber Truevision TGA Visual Instruction Set cobaltous cation negative regulation of D-amino-acid oxidase activity wavelength
Content Type	Text
Resource Type	Article

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