中国物理B ›› 2017, Vol. 26 ›› Issue (7): 76102-076102.doi: 10.1088/1674-1056/26/7/076102

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

Laser-induced fabrication of highly branched CuS nanocrystals with excellent near-infrared absorption properties

Ruyu Yang(杨汝雨), Zhongyi Zhang(张中义), Linlin Xu(徐林林), Shuang Li(李爽), Yang Jiao(焦扬), Hua Zhang(张华), Ming Chen(陈明)   

  1. 1 School of Physics, Shandong University, Jinan 250100, China;
    2 School of Science, Shandong Jianzhu University, Jinan 250101, China;
    3 School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • 收稿日期:2017-01-12 修回日期:2017-03-21 出版日期:2017-07-05 发布日期:2017-07-05
  • 通讯作者: Ming Chen E-mail:chenminglishuang@gmail.com
  • 基金资助:
    Project supported by National Natural Science Foundation of China (Grant Nos.11575102,11105085,11405098,and 11375108) and the Fundamental Research Funds of Shandong University,China (Grant No.2015JC007).

Laser-induced fabrication of highly branched CuS nanocrystals with excellent near-infrared absorption properties

Ruyu Yang(杨汝雨)1, Zhongyi Zhang(张中义)1, Linlin Xu(徐林林)1, Shuang Li(李爽)2, Yang Jiao(焦扬)3, Hua Zhang(张华)1, Ming Chen(陈明)1   

  1. 1 School of Physics, Shandong University, Jinan 250100, China;
    2 School of Science, Shandong Jianzhu University, Jinan 250101, China;
    3 School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
  • Received:2017-01-12 Revised:2017-03-21 Online:2017-07-05 Published:2017-07-05
  • Contact: Ming Chen E-mail:chenminglishuang@gmail.com
  • Supported by:
    Project supported by National Natural Science Foundation of China (Grant Nos.11575102,11105085,11405098,and 11375108) and the Fundamental Research Funds of Shandong University,China (Grant No.2015JC007).

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摘要： We report on the successful fabrication of highly branched CuS nanocrystals by laser-induced photochemical reaction. Surprisingly, the single-crystalline nature with preferential alignment of the (107) orientation can be well improved during the moderate growth process. The branch length drastically increases from about 5 nm to 6μm with an increase of photochemical reaction time (0–40 min). The absorption spectra of as-prepared CuS nanodendrites show that localized surface plasmon resonance (LSPR) peaks can be modulated from about 1037 nm to 1700 nm with an increase of branch length. Our results have a promising potential for photodynamic therapy and biological imaging application.

关键词: laser-induced photochemical reaction, CuS nanodendrites, single-crystalline nature, near-infrared absorption

Abstract: We report on the successful fabrication of highly branched CuS nanocrystals by laser-induced photochemical reaction. Surprisingly, the single-crystalline nature with preferential alignment of the (107) orientation can be well improved during the moderate growth process. The branch length drastically increases from about 5 nm to 6μm with an increase of photochemical reaction time (0–40 min). The absorption spectra of as-prepared CuS nanodendrites show that localized surface plasmon resonance (LSPR) peaks can be modulated from about 1037 nm to 1700 nm with an increase of branch length. Our results have a promising potential for photodynamic therapy and biological imaging application.

Key words: laser-induced photochemical reaction, CuS nanodendrites, single-crystalline nature, near-infrared absorption

中图分类号:  (Structure of nanoscale materials)

  • 61.46.-w
78.40.-q (Absorption and reflection spectra: visible and ultraviolet) 78.67.Sc (Nanoaggregates; nanocomposites) 82.50.Nd (Control of photochemical reactions)