Construction of Silver Film by Colloidal Crystal Template and Its Micro-discharge Inhibition Performance
BAI Yuanrui1, 2, MA Jianzhong1, 2, LIU Junli3, BAO Yan1, 2, CUI Wanzhao4, HU Tiancun4, WU Duoduo2, 5
1 College of Bioresources Chemical and Materials Engineering, Shaanxi University of Science and Technology, Xi'an 710021; 2 Shaanxi Research Institute of Agricultural Products Processing Technology, Xi'an 710021; 3 School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021; 4 National Laboratory of Science and Technology on Space Microwave, China Academy of Space Technology(Xi'an), Xi'an 710100; 5 College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology,Xi'an 710021;
Abstract: In recent years, multipactor suppression has been widely concerned in the accelerator, high-power microwave devices and other related fields. In this study, hollow sphere-like silver film was obtained via magnetron sputtering assisted by polystyrene (PS) colloidal crystal template. The second electron suppression effect of the silver film was adjusted by the size of PS template and the sputtering time (thickness of the silver layer). The morphology of silver films was characterized by SEM,and the SEY of silver films was characterized by secondary electron emission (SEY) test platform. The results show that size of PS template and sputtering time have significant effect on the morphology of silver film and its secondary electron suppression. When the sputtering time was 600 s and the template size was 1 000 nm, the maximum SEY of the silver film was relatively low, which meant the second electron suppression effect was more significant. Compared with the initial silver-plated aluminum alloy samples, the SEY value decreased by 48%.
白园蕊, 马建中, 刘俊莉, 鲍艳, 崔万照, 胡天存, 吴朵朵. 基于胶体晶体构筑银纳米薄膜及其抑制微放电性能研究[J]. 《材料导报》期刊社, 2018, 32(4): 515-519.
BAI Yuanrui, MA Jianzhong, LIU Junli, BAO Yan, CUI Wanzhao, HU Tiancun, WU Duoduo. Construction of Silver Film by Colloidal Crystal Template and Its Micro-discharge Inhibition Performance. Materials Reports, 2018, 32(4): 515-519.
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2018, Vol. 32 
