中国物理B ›› 2020, Vol. 29 ›› Issue (10): 104209-.doi: 10.1088/1674-1056/ab9de2

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Han-Da Wang(王汉达)1, De-Di Liu(刘德弟)1,†(), Yang-Yang He(何洋洋)1, Hong-Sheng Jia(贾洪声)3,‡(), Ran Liu(刘然)2, Bo Liu(刘波)2, Nai-Sen Yu(于乃森)1,4, Zhen-Yi Zhang(张振翼)1   

  • 收稿日期:2020-01-20 修回日期:2020-04-27 接受日期:2020-06-18 出版日期:2020-10-05 发布日期:2020-10-05
  • 通讯作者: De-Di Liu(刘德弟), Hong-Sheng Jia(贾洪声)

Photoluminescence changes of C70 nanotubes induced by laser irradiation

Han-Da Wang(王汉达)1, De-Di Liu(刘德弟)1,†, Yang-Yang He(何洋洋)1, Hong-Sheng Jia(贾洪声)3,‡, Ran Liu(刘然)2, Bo Liu(刘波)2, Nai-Sen Yu(于乃森)1,4 , and Zhen-Yi Zhang(张振翼)1   

  1. 1 School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, China
    2 State Key Laboratory of Superhard Materials, Jilin University, Changchun 130012, China
    3 Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, China
    4 Guangxi Key Laboratory of Precision Navigation Technology and Application, Guilin University of Electronic Technology, Guilin 541004, China
  • Received:2020-01-20 Revised:2020-04-27 Accepted:2020-06-18 Online:2020-10-05 Published:2020-10-05
  • Contact: Corresponding author. E-mail: liudedi@dlnu.edu.cn Corresponding author. E-mail: iop84041@163.com
  • About author:
    †Corresponding author. E-mail: liudedi@dlnu.edu.cn
    ‡Corresponding author. E-mail: iop84041@163.com
    * Project supported by the Natural Science Foundation of Liaoning Province, China (Grant Nos. 20180550100 and XLYC1807004), the National Natural Science Foundation of China (Grant No. 51772041), the Program for Dalian Excellent Talents, China (Grant No. 2017RQ148), and the Open Project of the Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, China (Grant No. 20162016003).

Abstract:

C70 nanotubes with a fcc lattice structure are polymerized through being irradiated by lasers with a wavelength of 514.5 nm at various power values. Raman spectra and photoluminescence (PL) spectra are employed to characterize the polymeric phases of the laser treated samples, showing that the disordered C70 oligomers are formed in the C70 nanotubes irradiated by such strong green lasers. Comparative studies further indicate that intermolecular bonds are formed between C70 molecules on the surface of nanotubes, which are similar to those formed under high pressure and high temperature (HPHT) conditions. And the content of intermolecular bonds increases obviously with the laser power increasing.

Key words: fullerene, polymerization, photoluminescence, nanocrystals

中图分类号:  (Light-sensitive materials)

  • 42.70.Gi
68.35.Rh (Phase transitions and critical phenomena) 78.55.Hx (Other solid inorganic materials) 78.30.Na (Fullerenes and related materials)