Growth and aggregation of Cu nanocrystals on ionic liquid surfaces

doi:10.1088/1674-1056/ab8896

中国物理B ›› 2020, Vol. 29 ›› Issue (6): 66801-066801.doi: 10.1088/1674-1056/ab8896

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇下一篇

Growth and aggregation of Cu nanocrystals on ionic liquid surfaces

Jia-Wei Shen(沈佳伟), Xun-Heng Ye(叶迅亨), Zhi-Long Bao(鲍志龙), Lu Li(李璐), Bo Yang(杨波), Xiang-Ming Tao(陶向明), Gao-Xiang Ye(叶高翔)

Department of Physics, Zhejiang University, Hangzhou 310027, China

收稿日期:2020-03-02 修回日期:2020-04-01 出版日期:2020-06-05 发布日期:2020-06-05
通讯作者: Gao-Xiang Ye E-mail:gxye@zju.edu.cn,gxye@mail.hz.zj.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11374082).

Growth and aggregation of Cu nanocrystals on ionic liquid surfaces

Jia-Wei Shen(沈佳伟), Xun-Heng Ye(叶迅亨), Zhi-Long Bao(鲍志龙), Lu Li(李璐), Bo Yang(杨波), Xiang-Ming Tao(陶向明), Gao-Xiang Ye(叶高翔)

Department of Physics, Zhejiang University, Hangzhou 310027, China

Received:2020-03-02 Revised:2020-04-01 Online:2020-06-05 Published:2020-06-05
Contact: Gao-Xiang Ye E-mail:gxye@zju.edu.cn,gxye@mail.hz.zj.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11374082).

摘要/Abstract

摘要： We report a catalyst-free growth of Cu nanocrystals on ionic liquid surfaces by thermal evaporation method at room temperature. After deposition of Cu on ionic liquid surfaces, ramified Cu aggregates form. It is found that the aggregates are composed of both granules and nanocrystals with triangular or hexagonal appearances. The sizes of the nanocrystals are in the range of tens to hundreds of nanometers and increase with the nominal deposition thickness. The growth mechanism of the Cu aggregates and nanocrystals is presented.

关键词: ramified aggregates, Cu nanocrystals, liquid substrates, critical state

Abstract: We report a catalyst-free growth of Cu nanocrystals on ionic liquid surfaces by thermal evaporation method at room temperature. After deposition of Cu on ionic liquid surfaces, ramified Cu aggregates form. It is found that the aggregates are composed of both granules and nanocrystals with triangular or hexagonal appearances. The sizes of the nanocrystals are in the range of tens to hundreds of nanometers and increase with the nominal deposition thickness. The growth mechanism of the Cu aggregates and nanocrystals is presented.

Key words: ramified aggregates, Cu nanocrystals, liquid substrates, critical state

中图分类号: (Thin film structure and morphology)

68.55.-a

81.10.Aj (Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation) 61.46.Df (Structure of nanocrystals and nanoparticles ("colloidal" quantum dots but not gate-isolated embedded quantum dots)) 68.37.-d (Microscopy of surfaces, interfaces, and thin films)

沈佳伟, 叶迅亨, 鲍志龙, 李璐, 杨波, 陶向明, 叶高翔. Growth and aggregation of Cu nanocrystals on ionic liquid surfaces[J]. 中国物理B, 2020, 29(6): 66801-066801.

Jia-Wei Shen(沈佳伟), Xun-Heng Ye(叶迅亨), Zhi-Long Bao(鲍志龙), Lu Li(李璐), Bo Yang(杨波), Xiang-Ming Tao(陶向明), Gao-Xiang Ye(叶高翔). Growth and aggregation of Cu nanocrystals on ionic liquid surfaces[J]. Chin. Phys. B, 2020, 29(6): 66801-066801.

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