Exciton-dominated Dielectric Function of Atomically Thin MoS2 Films

Scientific Reports

Volumn 5, Issue , 2015, Pages

  Yu, Yiling ^b   Yu, Yifei ^a   Cai, Yongqing ^c   Li, Wei ^d   Gurarslan, Alper ^a,b   Peelaers, Hartwin ^e   Aspnes, David E ^b   Van De Walle, Chris G ^e   Nguyen, Nhan V ^d   Zhang, Yong Wei ^c   Cao, Linyou ^a,b  

^a North Carolina State University   (United States)

^b NORTH CAROLINA STATE UNIVERSITY   (United States)

^c INSTITUTE OF HIGH PERFORMANCE COMPUTING   (Singapore)

^d NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY   (United States)

^e University of California   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CHEMICAL BINDING; EXPERIMENTAL MODEL; EXTRACT; MODEL;

EID: 84948171262     PISSN: None     EISSN: 20452322     Source Type: Journal    
DOI: 10.1038/srep16996     Document Type: Article

References (31)

1. Cao, L. Y. Two-dimensional transition-metal dichalcogenide materials: Toward an age of atomic-scale photonics. MRS Bull 40, 592-599 (2015).
2. Mak, K. F. et al. Tightly bound trions in monolayer MoS2. Nat Mater 12, 207-211 (2013).
3. Mak, K. F., Lee, C., Hone, J., Shan, J., Heinz, T. F. Atomically Thin MoS2: A New Direct-Gap Semiconductor. Phys Rev Lett 105 (2010).
4. Splendiani, A. et al. Emerging Photoluminescence in Monolayer MoS2. Nano Lett 10, 1271-1275 (2010).
5. Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., Strano, M. S. Electronics and optoelectronics of two-dimensional transition metal dichalcogenides. Nat. Nanotech. 7, 699-712 (2012).
6. Xu, X., Yao, W., Xiao, D., Heinz, T. F. Spin and Pseudospins in Layered Transition Metal Dichalcogenides. Nature Physics 10, 343-350 (2014).
7. Smith, D. R., Pendry, J. B., Wiltshire, M. C. K. Metamaterials and negative refractive index. Science 305, 788-792 (2004).
8. Miller, D. A. B. Quantum Mechanics for Scientists and Engineer. (Cambridge University Press, New York, NY; 2008).
9. Palik, E. D. Handbook of Optical Constants of Solids. (Acadmic Press, London, 1985).
10. Yu, Y. F. et al. Controlled Scalable Synthesis of Uniform, High-Quality Monolayer and Few-layer MoS2 Films. Sci. Rep. 3, 1866 (2013).
11. Yim, C. et al. Investigation of the optical properties of MoS2 thin films using spectroscopic ellipsometry. Appl. Phys. Lett. 104, 103114 (2014).
12. Liu, H.-L. et al. Optical properties of monolayer transition metal dichalcogenides probed by spectroscopic ellipsometry. Appl. Phys. Lett. 105, 201905 (2014).
13. Tompkins, H. G., Irene, E. A. Handbook of Ellipsometry. (William Andrew, Norwich, NY, 2005).
14. Beal, A. R., Hughes, H. P. Kramers-Kronig Analysis of the Reflectivity Spectra of 2h-Mos2, 2h-Mose2 and 2h-Mote2. J Phys C Solid State 12, 881-890 (1979).
15. Komsa, H.-P., Krasheninnikov, A. V. Effects of confinement and environment on the electronic structure and exciton binding energy of MoS2 from first principles. Phys. Rev. B 86, 241201 (2012).
16. Kozawa, D. et al. Photocarrier relaxation pathway in two-dimensional semiconducting transition metal dichalcogenides. Sci. Rep. 5, 4543 (2014).
17. Qiu, D. Y., Jornada, F. H. D., Louie, S. G. Optical Spectrum of MoS2: Many-Body Effects and Diversity of Exciton States. Phys. Rev. Lett. 111, 216805 (2013).
18. Shi, H. L., Pan, H., Zhang, Y. W., Yakobson, B. I. Quasiparticle band structures and optical properties of strained monolayer MoS2 and WS2. Phys. Rev. B 87, 155304 (2013).
19. Lee, Y. H. et al. Synthesis of Large-Area MoS2 Atomic Layers with Chemical Vapor Deposition. Adv Mater 24, 2320-2325 (2012).
20. Li, W. et al. Broad Band Optical Properties of Large Area Monolayer CVD Molybdenum Disulfide. Phys. Rev. B 90, 195434 (2014).
21. Li, Y. et al. Measurement of the optical dielectric function of monolayer transition-metal dichalcogenides: MoS2, MoSe2, WS2, and WSe2. Phys. Rev. B 90, 205422 (2014).
22. Chuang, S. L. Physics of Photonic Devices. (John Wiley & Sons, New York, NY, 1995).
23. Miller, D. A. B., Weiner, J. S., Chemla, D. S. Electric-Field Dependence of Linear Optical-Properties in Quantum-Well Structures-Wave-Guide Electroabsorption and Sum-Rules. Ieee J Quantum Elect 22, 1816-1830 (1986).
24. Weisbuch, C., Vinter, B. Quantum Semiconductor Structures: Fundamentals and Applications (Academic Press, San Diego, 1991).
25. Evans, B. L., Young, P. A. Optical absorption and dispersion in molybdenum disulphide. Proc. R. Soc. Lond. A 284, 402-422 (1965).
26. He, X. F. Fractional dimensionality and fractional derivative spectra of interband optical transitions. Phys. Rev. B 42, 11751-11756 (1990).
27. He, X. F. Excitons in anisotropic solids: The model of fractional-dimensional space. Phys. Rev. B 43, 2063-2069 (1991).
28. Fortin, E., Raga, F. Excitons in molybdenum disulphifle. Phys. Rev. B 11, 905-912 (1965).
29. Klots, A. R. et al. Probing excitonic states in suspended two-dimensional semiconductors by photocurrent spectroscopy. Sci. Rep. 4, 6608 (2014).
30. Buscema, M., Steele, G. A., Zant, H. S. J. v. d., Castellanos-Gomez, A. The effect of the substrate on the Raman and photoluminescence emission of single layer MoS2. Nano Res., doi: 10.1007/s12274-12014-10424-12270 (2014).
31. Gurarslan, A. et al. Surface Energy-Assisted Transfer of Centimeter-Scale Monolayer and Fewlayer MoS2 Films onto Arbitrary Substrates. ACS Nano 8, 11522-11528 (2014).