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基于PS球的銀微米結(jié)構(gòu)制備及二次電子發(fā)射性能
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西安交通大學(xué)電子與信息工程學(xué)院,中國(guó)空間技術(shù)研究院西安分院空間微波技術(shù)重點(diǎn)實(shí)驗(yàn)室,陜西科技大學(xué)資源與環(huán)境學(xué)院,陜西科技大學(xué)資源與環(huán)境學(xué)院,西安交通大學(xué)電子與信息工程學(xué)院

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空間微波技術(shù)重點(diǎn)實(shí)驗(yàn)室基金資助(項(xiàng)目號(hào)9140C530101130C53013、9140C530101140C53231)


Fabrication and Secondary electronic emission Property of silver Micro-Structure by PS sphere
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School of Electronic and Information Engineering,Xi’an Jiaotong University,xi’an,,College of Resources and Environment,Shaanxi University of Science Technology,xi’an,College of Resources and Environment,Shaanxi University of Science Technology,xi’an,School of Electronic and Information Engineering,Xi’an Jiaotong University,xi’an

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    摘要:

    金屬材料的二次電子發(fā)射是空間微波部件發(fā)生微放電效應(yīng)的重要機(jī)制,微放電效應(yīng)是航天器有效載荷射頻功率增大的限制因素。本文通過(guò)在金屬銀表面構(gòu)造大尺度聚苯乙烯球陣列制備微米尺度的銀膜陷阱結(jié)構(gòu),實(shí)現(xiàn)對(duì)二次電子發(fā)射的抑制。重點(diǎn)研究了PS微球自組裝方法對(duì)自組裝效果的影響及鍍銀方式對(duì)銀膜陷阱結(jié)構(gòu)形貌的影響,并對(duì)利用PS微球構(gòu)造的銀膜陷阱結(jié)構(gòu)的二次電子發(fā)射性能進(jìn)行研究。結(jié)果表明：蒸發(fā)沉積法中的單基片法可有效實(shí)現(xiàn)PS微球的自組裝,電化學(xué)沉積法鍍銀可獲得銀膜陷阱結(jié)構(gòu),且該銀膜陷阱結(jié)構(gòu)的二次電子發(fā)射系數(shù)最大值從2.2降低至1.6。

    Abstract:

    Secondary electronic emission on metal is the cause of multipactor effect, which is a limition of the space payload RF power increase. In this paper, micrometer-scale trap structure was constructed through large scale pol-ystyrene array to suppress secondary electron emission. PS microspheres self-assembly method are studied, the trap structure are presented, and the secondary emission characteristics are tested. The results showed that the trap structure silver film were prepared based on self-assemble of PS microspheres.Its structure can decreasing the maximum of SEY from 2.2 to 1.6

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胡天存,崔萬(wàn)照,鮑艷,馬建中,曹猛.基于PS球的銀微米結(jié)構(gòu)制備及二次電子發(fā)射性能[J].稀有金屬材料與工程,2017,46(9):2702~2707.[Tiancun Hu, Wanzhao Cui, Yan Bao, Jianzhong Ma, Meng Cao. Fabrication and Secondary electronic emission Property of silver Micro-Structure by PS sphere[J]. Rare Metal Materials and Engineering,2017,46(9):2702~2707.]
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  • 收稿日期:2015-12-05
  • 最后修改日期:2017-07-29
  • 錄用日期:2016-12-06
  • 在線(xiàn)發(fā)布日期: 2017-11-29
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