Cold Atmospheric Plasma Annealing of Plasmonic Silver Nanoparticles
Cold Atmospheric Plasma Annealing of Plasmonic Silver Nanoparticles
复制标题
等离子银纳米粒子的冷大气等离子体退火
DOI：
10.1149/08801.0197ecst
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Bhansali, Shekhar
中科院分区：
文献类型：
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作者：
Sonawane, Apurva;Mujawar, Mubarak A;Bhansali, Shekhar
这项工作描述了一种利用大气压等离子体在室温下对金属纳米颗粒进行热处理的新方法。采用气溶胶注入技术在石英衬底上制备了纳米银(AgNP)薄膜。AgNP薄膜在100℃-400℃下快速热处理，在室温下用冷大气压等离子体2-15分钟进行热处理。未退火的AgNP薄膜在426 nm处观察到表面等离子体共振(SPR)，冷等离子体退火后薄膜蓝移了5~70 nm。热退火后的AgNP薄膜的SPR也发生了蓝移，与冷等离子体退火时的蓝移相似。扫描电子显微镜照片显示冷等离子体退火和热退火后的AgNP薄膜在石英衬底上的分布相似。
This work describes a new approach to anneal metallic nanoparticles at room temperature using atmospheric pressure plasma. Silver nanoparticle (AgNP) films were deposited on quartz substrates using aerosol injection technique. The AgNP films were annealed at 100 C-400 C using rapid thermal processing, and at room temperature by cold atmospheric pressure plasma for 2-15 minutes. Surface plasmon resonance (SPR) of un-annealed AgNP films was observed at 426 nm, which was blue shifted by 5 to 70 nm after cold plasma annealing. The blue shift in SPR was also observed for thermally annealed AgNP films and the shift was similar to that of cold plasma annealing. SEM images showed the similar distribution of AgNPs on quartz substrates for both cold plasma annealed and thermally annealed AgNP films.