| RESEARCH PAPER |
|
|
|
|
|
| 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%.
|
|
Published: 25 February 2018
|
|
|
|
|
1 Zhang Na,Cui Wanzhao,Hu Tiancun,et al.Advances in research on multipactor[J].Space Electronic Technology,2011(1):38(in Chinese).
张娜,崔万照,胡天存,等.微放电效应研究进展[J].空间电子技术,2011(1):38.
2 Michizono S, Saito Y, Yamano Y, et al. Secondary electron emission of TiN-coated alumina ceramics[J].Vacuum,2007,81(6):799.
3 Costa Pinto P, Calatroni S, Neupert H, et al. Carbon coatings with low secondary electron yield[J].Vacuum,2013,98(4):29.
4 Pivi M, King F K, Kirby R E, et al. Sharp reduction of the secondary electron emission yield from grooved surfaces[J].Journal of Applied Physics,2008,104(10):104904.
5 Ye M, He Y N, Hu S G, et al. Investigation into anomalous total secondary electron yield for micro-porous Ag surface under oblique incidence conditions[J].Journal of Applied Physics,2014,63(14):350(in Chinese).
叶鸣,贺永宁,王瑞,等.基于微陷阱结构的金属二次电子发射系数抑制研究[J].物理学报,2014,63(14):350.
6 Bao Y, Zhang Y, Ma J, et al. Controllable fabrication of one-dimensional ZnO nanoarrays and their application in constructing silver trap structures[J].RSC Advances,2014,4(63):33198.
7 Wanke M C, Lehmann O, Müller K, et al. Laser rapid prototyping of photonic band-gap microstructures[J].Science,1997,275(5304):1284.
8 Ye Xin,Zhou Xinda,Huang Jin,et al. Influence of particle concentration on 2D colloidal crystals assembled by dip-coating[J].Atomic Energy Science and Technology,2011(4):447(in Chinese).
叶鑫,周信达,黄进,等.浓度对提拉组装二维胶晶模板及其缺陷的影响[J].原子能科学技术,2011(4):447.
9 Chen J, Dong P, Di D, et al. Controllable fabrication of 2D colloidal-crystal films with polystyrene nanospheres of various diameters by spin-coating[J].Applied Surface Science,2013,270:6.
10 Liau L C K, Chen Y P. Effects of voltage operating strategy on electrophoretic self-assembly deposition of spherical SiO2 particles in water[J].Colloidal and Surfaces A-Physicochemical and Engineering Aspects,2013,429:121.
11 Li Z, Wang W, Zhang L, et al. Magnetically modulated critical current densities of Co/Nb hybrid[J].Scientific reports,2015,5:18601.
12 Zhang H, Duan G, Liu G, et al. Layer-controlled synthesis of WO3 ordered nanoporous films for optimum electrochromic application[J].Nanoscale,2013,5(6):2460.
13 Cheng J Y, Ross C A, Chan V Z H, et al. Fabrication of nanopatterned thin films using self-assembled block copolymer lithography[J].Advanced Materials,2001,13:1174.
14 Stewart M E. Quantitative multispectral biosensing and imaging using plasmonic crystals[M].Ann Arbor:ProQuest,2008.
15 Lee K B, Park S J, Mirkin C A, et al. Protein nanoarrays generated by dip-pen nanolithography[J].Science,2002,295(5560):1702.
16 Denkov N, Velev O, Kralchevski P, et al. Mechanism of formation of two-dimensional crystals from latex particles on substrates[J].Langmuir,1992,8(12):3183.
17 Ye X, Li Y, Dong J, et al. Facile synthesis of ZnS nanobowl arrays and their applications as 2D photonic crystal sensors[J].Journal of Materials Chemistry C,2013,1(38):6112.
18 Li C, Hong G, Qi L. Nanosphere lithography at the gas/liquid interface: A general approach toward free-standing high-quality nano-nets[J].Chemistry of Materials,2009,22(2):476.
19 Kei C C, Chen T H, Chang C M, et al. Preparation of periodic arrays of metallic nanocrystals by using nanohoneycomb as reaction vessel[J].Chemistry of Materials,2007,19(24):5833.
20 Yu J, Yan Q, Shen D. Co-self-assembly of binary colloidal crystals at the air-water interface[J].ACS Applied Materials & Interfaces,2010,2(7):1922.
21 Gao S, Koshizaki N, Li Y, et al. Unique hexagonal non-close-packed arrays of alumina obtained by plasma etching/deposition with catalytic performance[J].Journal of Materials Chemistry,2011,21(7):2087.
22 Montero I, Aguilera L, Dávila M E, et al. Novel types of anti-ecloud surfaces[J].Physics,doi:10.5170/CERN-2013-002.153. |
|
|
|
渝公网安备50019002502923号 © Editorial Office of Materials Reports.
2018, Vol. 32 
