Photoluminescence emission and Raman response of monolayer MoS2, MoSe2, and WSe2

被引：1262

作者：

Tonndorf, Philipp ^{[1
]}

Schmidt, Robert ^{[1
]}

Boettger, Philipp ^{[1
]}

Zhang, Xiao ^{[1
]}

Boerner, Janna ^{[2
]}

Liebig, Andreas ^{[1
]}

Albrecht, Manfred ^{[1
]}

Kloc, Christian ^{[3
]}

Gordan, Ovidiu ^{[1
]}

Zahn, Dietrich R. T. ^{[1
]}

de Vasconcellos, Steffen Michaelis ^{[1
]}

Bratschitsch, Rudolf ^{[1
]}

机构：

[1] Tech Univ Chemnitz, Inst Phys, D-09107 Chemnitz, Germany

[2] Tech Univ Chemnitz, Inst Chem, D-09107 Chemnitz, Germany

[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

OPTICS EXPRESS | 2013年 / 21卷 / 04期

关键词：

KRAMERS-KRONIG ANALYSIS; REFLECTIVITY SPECTRA; 2H-MOSE2; PHONONS;

D O I：

10.1364/OE.21.004908

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We mechanically exfoliate mono- and few-layers of the transition metal dichalcogenides molybdenum disulfide, molybdenum diselenide, and tungsten diselenide. The exact number of layers is unambiguously determined by atomic force microscopy and high-resolution Raman spectroscopy. Strong photoluminescence emission is caused by the transition from an indirect band gap semiconductor of bulk material to a direct band gap semiconductor in atomically thin form. (C) 2013 Optical Society of America

引用

页码：4908 / 4916

页数：9

共 40 条

[1] EXCITON SPECTRA IN MOSE2 [J].

ANEDDA, A ;

FORTIN, E .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1980, 41 (08) :865-869

[2]

[Anonymous], ARXIV12085864

[3] A Comparative Study of Lattice Dynamics of Three- and Two-Dimensional MoS2 [J].

Ataca, C. ;

Topsakal, M. ;

Akturk, E. ;

Ciraci, S. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (33) :16354-16361

[4] KRAMERS-KRONIG ANALYSIS OF REFLECTIVITY SPECTRA OF 3R-WS2 AND 2H-WSE2 [J].

BEAL, AR ;

LIANG, WY ;

HUGHES, HP .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1976, 9 (12) :2449-2457

[5] KRAMERS-KRONIG ANALYSIS OF THE REFLECTIVITY SPECTRA OF 2H-MOS2, 2H-MOSE2 AND 2H-MOTE2 [J].

BEAL, AR ;

HUGHES, HP .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1979, 12 (05) :881-890

[6] Visibility of dichalcogenide nanolayers [J].

Benameur, M. M. ;

Radisavljevic, B. ;

Heron, J. S. ;

Sahoo, S. ;

Berger, H. ;

Kis, A. .

NANOTECHNOLOGY, 2011, 22 (12)

[7] Optical identification of atomically thin dichalcogenide crystals [J].

Castellanos-Gomez, A. ;

Agrait, N. ;

Rubio-Bollinger, G. .

APPLIED PHYSICS LETTERS, 2010, 96 (21)

[8] ELECTRONIC-STRUCTURE OF MOSE2, MOS2, AND WSE2 .2. THE NATURE OF THE OPTICAL BAND-GAPS [J].

COEHOORN, R ;

HAAS, C ;

DEGROOT, RA .

PHYSICAL REVIEW B, 1987, 35 (12) :6203-6206

[9] Optical band gap in tungsten diselenide single crystals intercalated by indium [J].

Deshpande, MP ;

Solanki, GK ;

Agarwal, MK .

MATERIALS LETTERS, 2000, 43 (1-2) :66-72

[10] First principles study of structural, vibrational and electronic properties of graphene-like MX2 (M=Mo, Nb, W, Ta; X=S, Se, Te) monolayers [J].

Ding, Yi ;

Wang, Yanli ;

Ni, Jun ;

Shi, Lin ;

Shi, Siqi ;

Tang, Weihua .

PHYSICA B-CONDENSED MATTER, 2011, 406 (11) :2254-2260

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