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材料导报  2023, Vol. 37 Issue (7): 21060137-5    https://doi.org/10.11896/cldb.21060137
  高分子与聚合物基复合材料 |
基于聚苯乙烯模板的金纳米碗结构的制备及二次电子发射特性
张毅1, 韩昭1, 白园蕊2, 鲍艳2,*, 马建中2, 叶楠1
1 中国空间技术研究院西安分院,西安 710100
2 陕西科技大学轻工科学与工程学院,西安 710021
Preparation and Secondary Electron Emission Characteristics of Gold Nano-bowl Structure Based on Polystyrene Template
ZHANG Yi1, HAN Zhao1, BAI Yuanrui2, BAO Yan2,*, MA Jianzhong2, YE Nan1
1 China Academy of Space Technology(Xi’an), Xi’an 710100, China
2 College of Bioresources Chemistry and Material Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
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摘要 降低金属微波部件二次电子发射系数(SEY)是提高其微放电阈值的常用方法,以二维聚苯乙烯(PS)胶体晶体为模板、二氧化钛(TiO2)为过渡层,采用电化学沉积法在镀银铝合金表面制备金纳米碗结构涂层,利用金纳米碗结构吸收和捕获二次电子,降低表面二次电子发射系数。结果表明:当镀金液中亚硫酸钠(Na2SO3)浓度为140 g/L、乙二胺四乙酸二钠(Na2EDTA)浓度为5 g/L、氯金酸(HAuCl4)浓度为10 g/L、沉积时间为60 min时,金纳米碗结构涂层的二次电子发射系数最大值为1.62,与初始镀银铝合金样片相比,其SEY最大值降低了26.4%。本研究为抑制微放电效应提供了一种新的表面处理方法。
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张毅
韩昭
白园蕊
鲍艳
马建中
叶楠
关键词:  聚苯乙烯  金纳米结构  微放电  二次电子发射    
Abstract: Reducing the low secondary electron emission coefficient (SEY) of metal microwave components is a common method to improve its multipactor threshold. In this paper, gold nanostructures were prepared on the surface of silver-plated aluminum alloy by electrochemical method using two-dimensional polystyrene (PS) colloidal crystals as a template, TiO2 as transition layer, and the secondary electron emission yield was reduced by using gold nanostructures to absorb and capture secondary electrons. The results showed that the maximum value of the secondary electron emission yield of the gold nanostructures was 1.62, when the concentration of Na2SO3, Na2EDTA, and HAuCl4 was 140 g/L, 5 g/L and 10 g/L, respectively, and the deposition time was 60 min. It was a 26.4% reduction in the SEY maximum compared to the initial silver-plated aluminum alloy sample. This research provides a new surface treatment method for inhibiting multipactor effect.
Key words:  polystyrene    gold nanostructure    multipactor    secondary electron emission
出版日期:  2023-04-10      发布日期:  2023-04-07
ZTFLH:  TG178  
通讯作者:  * 鲍艳,陕西科技大学轻工科学与工程学院教授、博士研究生导师,享受国务院政府特殊津贴专家。2008年博士毕业于陕西科技大学并留校至今,主要从事功能性皮革化学品及有机/无机纳米复合材料的研究。作为项目负责人承担国家重点研发计划子课题、国家自然科学基金等纵向科研项目19项,企业产学研合作项目10项,授权国家发明专利56件;以第一或通信作者身份发表学术论文126篇,其中被SCI收录51篇。研究成果获国家技术发明二等奖、国家科学技术进步二等奖等;入选国家级百千万人才工程、教育部新世纪优秀人才支持计划等人才项目。baoyan0611@126.com   
作者简介:  张毅,中国空间技术研究院西安分院有效载荷总体部主任设计师,2009年硕士毕业于中国空间技术研究院西安分院并留院工作至今,主要研究方向为卫星高速数据传输技术、遥感卫星大功率载荷射频放电等。目前已经受理和授权专利7项,发表学术论文多篇。
引用本文:    
张毅, 韩昭, 白园蕊, 鲍艳, 马建中, 叶楠. 基于聚苯乙烯模板的金纳米碗结构的制备及二次电子发射特性[J]. 材料导报, 2023, 37(7): 21060137-5.
ZHANG Yi, HAN Zhao, BAI Yuanrui, BAO Yan, MA Jianzhong, YE Nan. Preparation and Secondary Electron Emission Characteristics of Gold Nano-bowl Structure Based on Polystyrene Template. Materials Reports, 2023, 37(7): 21060137-5.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.21060137  或          http://www.mater-rep.com/CN/Y2023/V37/I7/21060137
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