Nanojets from the heated PbO-coated Pb clusters and its ambient sensitivity

Nanojets from the heated PbO-coated Pb clusters and its ambient sensitivity
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来自加热的 PbO 包覆的 Pb 团簇的纳米喷射及其环境敏感性

DOI:
10.1063/1.2382737
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发表时间:
2006-11
影响因子:
4
通讯作者:
Song, Fengqi
Song, Fengqi
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Li, Fan;Zhang, Hao;Han, Min;Wan, Jianguo;Zhou, Jianfeng;He, LongBing;Xu, Aiqun;Wang, Guanghou;Song, Fengqi

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用变温拉曼散射和透射电子显微镜研究了PbO包覆的PbO纳米团簇在不同常压下的热稳定性。拉曼散射显示了电池内部压力的变化,说明了随着液体纳米射流的最终形成,电池发生了崩溃。不同的环境压力被用来调整纳米喷嘴的工作,从不产生喷嘴到多个喷嘴。对气体参与冷却提高了纳米喷嘴的工作稳定性提出了解释。环境敏感的工作稳定性被认为是少原子纳米器件的普遍效应。
The thermal stability of the PbO-coated Pb nanoclusters was evaluated in different ambient pressures by the temperature-variable Raman scattering and transmission electron microscopy. The change of the inner pressure was presented by Raman scattering to demonstrate the cell’s collapse with the final formation of the liquid nanojets. The different ambient pressures were used to tune the working of the nanojet from no jet production to multiple jets. An interpretation of gas-participated cooling that improves the working stability of the nanonozzles was proposed. The ambient-sensitive working stability was suggested to be a universal effect for the few-atom-contained nanodevices.
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