New Deformation-Induced Nanostructure in Silicon
文献类型：期刊论文
| 作者 | Luo, Jun; Guo, Dongming; Jiang, Nan; Zang, Ketao; Chen, Guoxin; Lin, Cheng-Te; Yu, Jinhong; Rosenkranz, Andreas; Cui, Junfeng; Chang, Keke |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2018 |
| 卷号 | 18期号:7页码:4611-4617 |
| 关键词 | Phase-transition Induced Amorphization Si Nanowires Dynamics Crystal Stress Nanoindentation Transformation Anisotropy Density |
| 英文摘要 | Nanostructures in silicon (Si) induced by phase transformations have been investigated during the past 50 years. Performances of nanostructures are improved compared to that of bulk counterparts. Nevertheless, the confinement and loading conditions are insufficient to machine and fabricate high-performance devices. As a consequence, nanostructures fabricated by nanoscale deformation at loading speeds of m/s have not been demonstrated yet. In this study, grinding or scratching at a speed of 40.2 m/s was performed on a custom-made setup by an especially designed diamond tip (calculated stress under the diamond tip in the order of 5.11 GPa). This leads to a novel approach for the fabrication of nanostructures by nanoscale deformation at loading speeds of m/s. A new deformation-induced nanostructure was observed by transmission electron microscopy (TEM), consisting of an amorphous phase, a new tetragonal phase, slip bands, twinning superlattices, and a single crystal. The formation mechanism of the new phase was elucidated by ab initio simulations at shear stress of about 2.16 GPa. This approach opens a new route for the fabrication of nanostructures by nanoscale deformation at speeds of m/s. Our findings provide new insights for potential applications in transistors, integrated circuits, diodes, solar cells, and energy storage systems. |
| 学科主题 | Science & Technology - Other Topics ; Materials Science ; Optics ; Physics |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17339]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Luo, Jun,Guo, Dongming,Jiang, Nan,et al. New Deformation-Induced Nanostructure in Silicon[J]. NANO LETTERS,2018,18(7):4611-4617. |
| APA | Luo, Jun.,Guo, Dongming.,Jiang, Nan.,Zang, Ketao.,Chen, Guoxin.,...&Wang, Bo.(2018).New Deformation-Induced Nanostructure in Silicon.NANO LETTERS,18(7),4611-4617. |
| MLA | Luo, Jun,et al."New Deformation-Induced Nanostructure in Silicon".NANO LETTERS 18.7(2018):4611-4617. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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