J. Mater. Sci. Technol. ›› 2021, Vol. 81: 51-57.DOI: 10.1016/j.jmst.2020.11.064

• Research Article • Previous Articles     Next Articles

Enhanced Q-switching performance of magnetite nanoparticle via compositional engineering with Ti3C2 MXene in the near infrared region

Yutao Hua, Hongwei Chua,*(), Daozhi Lia, Ying Lib, Shengzhi Zhaoa, Li Donga, Dechun Lia,*()   

  1. aSchool of Information Science and Engineering, Shandong University, Qingdao, 266237, China
    bKey Laboratory of Colloid and Interface Chemistry, Ministry of Education, and School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
  • Received:2020-10-18 Revised:2020-11-27 Accepted:2020-11-27 Published:2021-01-08 Online:2021-01-08
  • Contact: Hongwei Chu,Dechun Li
  • About author:dechun@sdu.edu.cn (D. Li).
    *E-mail addresses: hongwei.chu@sdu.edu.cn (H. Chu),

Abstract:

In this work, we reported a new strategy to improve the nonlinear saturable absorption performance of magnetite (Fe3O4) nanoparticles (FONPs) via the compositional engineering with the Ti3C2 MXene in the near-infrared (NIR) region. Based on the DFT simulation, the band structures and work function were significantly modified by the Ti3C2 MXene doping. By using the open-aperture Z-scan technology, the nonlinear optical features of the FONPs@Ti3C2 nanocomposite were significantly improved, showing the great potential as the saturable absorber in the pulsed laser. With the nanocomposite as the saturable absorber, the passively Q-switched Nd:GdVO4 lasers emitted much shorter pulse durations when compared with the pristine FONP saturable absorber. These findings indicated that FONPs@Ti3C2 heterostructure was a promising saturable absorber for the short pulse generation in the NIR region.

Key words: Fe3O4 nanoparticle, Ti3C2 Mxene, Heterostructure, Saturable absorber, Q-switching