钛掺杂对低辐射银膜的团聚抑制作用The role of titanium doping in the agglomeration suppression of Ag-based low emissivity films
孙瑶,汪洪
摘要(Abstract):
以金属Ag作为红外反射功能层的低辐射多层膜受热易产生团聚,严重损害导电性与低辐射性能。本文提出在金属Ag膜层中掺杂Ti元素,研究Ti掺杂对Ag基低辐射多层膜的团聚抑制作用以及对热处理后性能的影响。采用磁控溅射制备SiN_x/Ag/Si Nx与Si Nx/Ag-Ti(1.1 at%)/Si Nx多层膜,其中Ag(Ti)层厚度为20 nm,并进行真空与非真空热处理(大气环境)。通过对比有无Ti掺杂的Ag基多层膜热处理前后的背散射电子形貌、面电阻、辐射率与透光率,发现无论真空还是非真空热处理,Ti掺杂均显著提高Ag膜的热稳定性,抑制团聚的生成。热处理后的面电阻、辐射率与透光率均显著优于未掺杂Ag基多层膜。进一步,观察背散射电子形貌随热处理温度的变化,分析了无掺杂Ag膜团聚的形成过程,并推测了Ti掺杂对Ag膜团聚的抑制机理。
关键词(KeyWords): 低辐射;银膜;团聚;热稳定性;掺杂
基金项目(Foundation): 国家自然科学基金(51272245);; 北京市科技创新基地培育与发展专项(Z151100001615038)
作者(Author): 孙瑶,汪洪
DOI: 10.13289/j.issn.1009-6264.2016.08.033
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