Free-Standing Two-Dimensional Gold Membranes Produced by Extreme Mechanical Thinning
文献类型：期刊论文
| 作者 | Zhu, Qi1,2; Hong, Youran1,2; Cao, Guang1,2; Zhang, Yin3; Zhang, Xiaohan3; Du, Kui4; Zhang, Ze1,2; Zhu, Ting3; Wang, Jiangwei1,2 |
| 刊名 | ACS NANO
 |
| 出版日期 | 2020-12-22 |
| 卷号 | 14期号:12页码:17091-17099 |
| 关键词 | 2D gold membrane mechanical thinning defect diffusion in situ transmission electron microscopy |
| ISSN号 | 1936-0851 |
| DOI | 10.1021/acsnano.0c06697 |
| 通讯作者 | Zhu, Ting(ting.zhu@me.gatech.edu) ; Wang, Jiangwei(jiangwei_wang@zju.edu.cn) |
| 英文摘要 | Two-dimensional (2D) materials exhibit exceptional physical and chemical properties owing to their atomically thin structures. However, it remains challenging to produce 2D materials consisting of pure monoelemental metallic atoms. Here free-standing 2D gold (Au) membranes were prepared via in situ transmission electron microscopy straining of Au films. The applied in-plane tensile strain induces an extensive amount of out-of-plane thinning deformation in a local region of an Au thin film, resulting in the nucleation and growth of a free-standing 2D Au membrane surrounded by its film matrix. This 2D membrane is shown to be one atom thick with a simple-hexagonal lattice, which forms an atomically sharp interface with the face-centered cubic lattice of the film matrix. Diffusive transport of surface atoms, in conjunction with the dynamic evolution of interface dislocations, plays important roles in the formation of 2D Au membranes during the mechanical thinning process. These results demonstrate a top-down approach to produce free-standing 2D membranes and provide a general understanding on extreme mechanical thinning of metallic films down to the single-atom-thick limit. |
| 资助项目 | National Natural Science Foundation of China[51771172] ; National Natural Science Foundation of China[52071284] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000603308800070 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/158915]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhu, Ting; Wang, Jiangwei |
| 作者单位 | 1.Zhejiang Univ, State Key Lab Silicon Mat, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China 2.Zhejiang Univ, Ctr Electron Microscopy, Sch Mat Sci & Engn, Hangzhou 310027, Peoples R China 3.Georgia Inst Technol, Woodruff Sch Mech Engn, Atlanta, GA 30332 USA 4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Qi,Hong, Youran,Cao, Guang,et al. Free-Standing Two-Dimensional Gold Membranes Produced by Extreme Mechanical Thinning[J]. ACS NANO,2020,14(12):17091-17099. |
| APA | Zhu, Qi.,Hong, Youran.,Cao, Guang.,Zhang, Yin.,Zhang, Xiaohan.,...&Wang, Jiangwei.(2020).Free-Standing Two-Dimensional Gold Membranes Produced by Extreme Mechanical Thinning.ACS NANO,14(12),17091-17099. |
| MLA | Zhu, Qi,et al."Free-Standing Two-Dimensional Gold Membranes Produced by Extreme Mechanical Thinning".ACS NANO 14.12(2020):17091-17099. |
入库方式： OAI收割
来源：金属研究所
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