Structuralandsizeevolutionofindiumnanoparticlesembedded inaluminumsynthesizedbyionimplantation
Structuralandsizeevolutionofindiumnanoparticlesembedded inaluminumsynthesizedbyionimplantation
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离子注入合成的嵌入铝中的铟纳米颗粒的结构和尺寸演变
DOI：
10.1088/1674-1056/26/12/126101
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发表时间：
2017
影响因子：
1.7
通讯作者：
Huan Wang
中科院分区：
文献类型：
--
作者：
Yan-Xia Yan;Meng Liu;Mei-Juan Hu;Hong-Zhi Zhu;Huan Wang
实验研究了离子注入和退火过程中In纳米颗粒的结构和尺寸的变化。在423 K和453 K之间的温度范围内，In纳米颗粒的平均半径r被确定为退火时间的函数。In（200）[002]kAl（200）[002]晶向的In纳米颗粒结构转变为In（111）[110]kAl（002）[110]，临界颗粒半径在2.3 ~ 2.6 nm之间。此外，在退火过程中的In纳米颗粒的生长显然是由扩散限制奥斯特瓦尔德熟化。通过对实验数据的进一步分析，得到了扩散系数和激活能的数值。
The structural and the size evolution of embedded In nanoparticles in Al synthesized by ion implantation and subsequent annealing are experimentally investigated. The average radius r of In nanoparticles is determined as a function of annealing time in a temperature range between 423 K and 453 K. The structural transition of In nanoparticles with the crystallographic orientation In (200)[002]kAl (200)[002] is observed to change into In (111)[110]kAl (002)[110] with a critical particle radius between 2.3 nm and 2.6 nm. In addition, the growth of In nanoparticles in the annealing process is evidently governed by the diffusion limited Ostwald ripening. By further analyzing the experimental data, values of diffusion coefficient and activation energy are obtained..