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15 October 2015 Size and distribution controllable silica microballs fabricated by electrospraying
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Silica microballs have a wide range of applications in the field of optics, electronics, biotechnology,chemical industry, and so on. In this work, a new approach, electrospraying, was used to coat the silica microballs onto the glass substrate, and the coating results were compared to spin-coating and dip-coating. Good microball size control could be achieved using the electrospraying method. X-Ray Diffraction (XRD) results showed that amorphous silica microballs were obtained. From Scanning Electron Microscopy (SEM) images, we can see that uniform microball size was achieved. In general, the results are better than what can be achieved by spin-coating, and comparable to that of dip-coating. However, electrospraying has great potential in mass production, especially for large-area fabrication.
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Bojing Xu, Pan Wu, Qi Jiang, and Wenhua Gu "Size and distribution controllable silica microballs fabricated by electrospraying", Proc. SPIE 9673, AOPC 2015: Micro/Nano Optical Manufacturing Technologies; and Laser Processing and Rapid Prototyping Techniques, 96730Y (15 October 2015);

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