Effects of crystallographic and geometric orientation on ion beam sputtering of gold nanorods.
Effects of crystallographic and geometric orientation on ion beam sputtering of gold nanorods.
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DOI：
10.1038/s41598-017-17424-9
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发表时间：
2018-01-11
影响因子：
4.6
通讯作者：
Nordlund K
中科院分区：
文献类型：
--
作者：
Hinks JA;Hibberd F;Hattar K;Ilinov A;Bufford DC;Djurabekova F;Greaves G;Kuronen A;Donnelly SE;Nordlund K
纳米结构在其制造、工程设计和使用过程中可能会受到辐射。这种轰炸的后果可能与大规模轰炸的后果截然不同。在本文中，我们将透射电子显微镜与原位离子辐照和互补的计算机建模技术相结合，探索控制 1.7MeV Au 离子对金纳米棒影响的物理原理。已经探索了离子照射引起的溅射周围的现象和相关的形态变化。在实验和模拟中，观察到单个纳米棒的溅射产率存在很大差异。这些溅射产额已被证明与接近离子束入射方向的沟道方向的强度相关。发现由于簇发射而形成了由喷射物覆盖层装饰的陨石坑，从而解释了高溅射产率。
Nanostructures may be exposed to irradiation during their manufacture, their engineering and whilst in-service. The consequences of such bombardment can be vastly different from those seen in the bulk. In this paper, we combine transmission electron microscopy with in situ ion irradiation with complementary computer modelling techniques to explore the physics governing the effects of 1.7 MeV Au ions on gold nanorods. Phenomena surrounding the sputtering and associated morphological changes caused by the ion irradiation have been explored. In both the experiments and the simulations, large variations in the sputter yields from individual nanorods were observed. These sputter yields have been shown to correlate with the strength of channelling directions close to the direction in which the ion beam was incident. Craters decorated by ejecta blankets were found to form due to cluster emission thus explaining the high sputter yields.
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影响因子：
2.9
作者：
Hinks, J. A.;van den Berg, J. A.;Donnelly, S. E.
通讯作者：
Donnelly, S. E.
影响因子：
3.7
作者：
FOILES, SM;BASKES, MI;DAW, MS
通讯作者：
DAW, MS
影响因子：
8.6
作者：
Greaves, G.;Hinks, J. A.;Donnelly, S. E.
通讯作者：
Donnelly, S. E.
影响因子：
4.7
作者：
Chun, Stephen G.;Solberg, Timothy D.;Frank, Steven J.
通讯作者：
Frank, Steven J.
影响因子：
3.7
作者：
FOILES, SM
通讯作者：
FOILES, SM