中国物理B ›› 2017, Vol. 26 ›› Issue (3): 37801-037801.doi: 10.1088/1674-1056/26/3/037801

所属专题: TOPICAL REVIEW — 2D materials: physics and device applications

• TOPICAL REVIEW—2D materials: physics and device applications • 上一篇    下一篇

Review of ultrafast spectroscopy studies of valley carrier dynamics in two-dimensional semiconducting transition metal dichalcogenides

Dong Sun(孙栋), Jia-Wei Lai(赖佳伟), Jun-Chao Ma(马骏超), Qin-Sheng Wang(王钦生), Jing Liu (刘晶)   

  1. 1 International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China;
    2 Collaborative Innovation Center of Quantum Matter, Beijing 100871, China;
    3 State Key Laboratory of Precision Measurement Technology and Instruments, School of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin 300072, China
  • 收稿日期:2016-10-17 修回日期:2016-12-21 出版日期:2017-03-05 发布日期:2017-03-05
  • 通讯作者: Dong Sun E-mail:sundong@pku.edu.cn
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant Nos. 2012CB921300 and 2014CB920900), the National Key Research and Development Program of China (Grant No. 2016YFA0300802), the National Natural Science Foundation of China (Grant Nos. 11274015, 11674013, and 21405109), the Recruitment Program of Global Experts, China, and Beijing Natural Science Foundation, China (Grant No. 4142024).

Review of ultrafast spectroscopy studies of valley carrier dynamics in two-dimensional semiconducting transition metal dichalcogenides

Dong Sun(孙栋)1,2, Jia-Wei Lai(赖佳伟)1, Jun-Chao Ma(马骏超)1, Qin-Sheng Wang(王钦生)1, Jing Liu (刘晶)3   

  1. 1 International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China;
    2 Collaborative Innovation Center of Quantum Matter, Beijing 100871, China;
    3 State Key Laboratory of Precision Measurement Technology and Instruments, School of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin 300072, China
  • Received:2016-10-17 Revised:2016-12-21 Online:2017-03-05 Published:2017-03-05
  • Contact: Dong Sun E-mail:sundong@pku.edu.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant Nos. 2012CB921300 and 2014CB920900), the National Key Research and Development Program of China (Grant No. 2016YFA0300802), the National Natural Science Foundation of China (Grant Nos. 11274015, 11674013, and 21405109), the Recruitment Program of Global Experts, China, and Beijing Natural Science Foundation, China (Grant No. 4142024).

摘要:

The two-dimensional layered transition metal dichalcogenides provide new opportunities in future valley-based information processing and also provide an ideal platform to study excitonic effects. At the center of various device physics toward their possible electronic and optoelectronic applications is understanding the dynamical evolution of various many-particle electronic states, especially exciton which dominates the optoelectronic response of TMDs, under the novel context of valley degree of freedom. Here, we provide a brief review of experimental advances in using helicity-resolved ultrafast spectroscopy, especially ultrafast pump-probe spectroscopy, to study the dynamical evolution of valley-related many-particle electronic states in semiconducting monolayer transitional metal dichalcogenides.

关键词: ultrafast spectroscopy, valley carrier dynamics, transition metal dichalcogenides, exciton

Abstract:

The two-dimensional layered transition metal dichalcogenides provide new opportunities in future valley-based information processing and also provide an ideal platform to study excitonic effects. At the center of various device physics toward their possible electronic and optoelectronic applications is understanding the dynamical evolution of various many-particle electronic states, especially exciton which dominates the optoelectronic response of TMDs, under the novel context of valley degree of freedom. Here, we provide a brief review of experimental advances in using helicity-resolved ultrafast spectroscopy, especially ultrafast pump-probe spectroscopy, to study the dynamical evolution of valley-related many-particle electronic states in semiconducting monolayer transitional metal dichalcogenides.

Key words: ultrafast spectroscopy, valley carrier dynamics, transition metal dichalcogenides, exciton

中图分类号:  (Ultrafast spectroscopy (<1 psec))

  • 78.47.J-
78.47.jd (Time resolved luminescence) 71.35.-y (Excitons and related phenomena)