Optical properties of atomically thin transition metal dichalcogenides: observations and puzzles

被引：188

作者：

Koperski, Maciej ^{[1
,2
]}

Molas, Maciej R. ^{[1
]}

Arora, Ashish ^{[1
,3
,4
]}

Nogajewski, Karol ^{[1
]}

Slobodeniuk, Artur O. ^{[1
]}

Faugeras, Clement ^{[1
]}

Potemski, Marek ^{[1
,2
]}

机构：

[1] CNRS, Lab Natl Champs Magnet Intenses, UGA, UPS,INSA,EMFL, 25 Rue Martyrs, F-38042 Grenoble, France

[2] Univ Warsaw, Inst Expt Phys, Fac Phys, Pasteura 5, PL-02093 Warsaw, Poland

[3] Univ Munster, Inst Phys, Wilhelm Klemm Str 10, D-48149 Munster, Germany

[4] Univ Munster, Ctr Nanotechnol, Wilhelm Klemm Str 10, D-48149 Munster, Germany

来源：

NANOPHOTONICS | 2017年 / 6卷 / 06期

基金：

欧洲研究理事会;

关键词：

atomically-thin transition metal dicalcogenides; electronic bands and optical properties; Zeeman spectroscopy; optical orientation; single photon emitters; SINGLE-PHOTON EMISSION; FANO RESONANCES; QUANTUM EMITTERS; VALLEY DYNAMICS; MONOLAYER MOS2; FINE-STRUCTURE; POINT-DEFECTS; MONO LAYER; EXCITONS; LIGHT;

D O I：

10.1515/nanoph-2016-0165

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Recent results on the optical properties of monolayer and few layers of semiconducting transition metal dichalcogenides are reviewed. Experimental observations are presented and discussed in the frame of existing models, highlighting the limits of our understanding in this emerging field of research. We first introduce the representative band structure of these systems and their interband optical transitions. The effect of an external magnetic field is then considered to discuss Zeeman spectroscopy and optical pumping experiments, both revealing phenomena related to the valley degree of freedom. Finally, we discuss the observation of single photon emitters in different types of layered materials, including wide band gap hexagonal boron nitride. While going through these topics, we try to focus on open questions and on experimental observations, which do not yet have a clear explanation.

引用

页码：1289 / 1308

页数：20

共 139 条

[1] Magnetic control of valley pseudospin in monolayer WSe2 [J].