Strong Photoluminescence Fluctuations in Laser-Thinned Few-Layer WS₂

• Authors: Ł. Bala , E. Łacińska , K. Nogajewski , M. Molas , A. Wysmołek , M. Potemski
• Languages of publication: EN

Abstracts

EN

We present results of μ-Raman and μ-photoluminescence study of few-layer WS₂ flakes that have been locally thinned down by a focused laser beam. The Raman spectroscopy measurements prove that the investigated flake was locally thinned down to a monolayer. Interestingly, μ-photoluminescence experiments allowed us to observe huge intensity fluctuations at the boundary of laser-thinned region. Similar effects were found at the edges of a WS₂ bilayer flake, which has not been subjected to laser-thinning. The origin of the observed time evolution of the photoluminescence response is discussed in terms of potential fluctuations resulting from light-induced changes of the charge state of defects.

Keywords

EN

73.22.-f; 71.35.-y; 78.55.-m; 78.30.-j

Discipline

• 73.22.-f: Electronic structure of nanoscale materials and related systems
• 78.30.-j: Infrared and Raman spectra(for vibrational states in crystals and disordered systems, see 63.20.-e and 63.50.-x, respectively; for Raman spectra of superconductors, see 74.25.nd)
• 78.55.-m: Photoluminescence, properties and materials(for time resolved luminescence, see 78.47.jd)
• 71.35.-y: Excitons and related phenomena

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 5
• Pages: 1176-1178

Dates

published

2016-11

Contributors

author

Ł. Bala

• Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland

author

E. Łacińska

• Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland

author

K. Nogajewski

• Laboratoire National des Champs Magnétiques Intenses, CNRS-UGA-UPS-INSA-EMFL, 25, av. des Martyrs, 38042 Grenoble, France

author

M. Molas

• Laboratoire National des Champs Magnétiques Intenses, CNRS-UGA-UPS-INSA-EMFL, 25, av. des Martyrs, 38042 Grenoble, France

author

A. Wysmołek

• Faculty of Physics, University of Warsaw, L. Pasteura 5, 02-093 Warszawa, Poland

author

M. Potemski

• Laboratoire National des Champs Magnétiques Intenses, CNRS-UGA-UPS-INSA-EMFL, 25, av. des Martyrs, 38042 Grenoble, France

References

• [1] Q.H. Wang, K. Kalantar-Zadeh, A. Kis, J.N. Coleman, M.S. Strano, Nat. Nanotech. 7, 699 (2012), doi: 10.1038/nnano.2012.193
• [2] H.R. Gutiérrez, N. Perea-López, A.L. Elías, A. Berkdemir, B. Wang, M. Terrones, Nano Lett. 13, 3447 (2012), doi: 10.1021/nl3026357
• [3] B. Radisavljevic, A. Radenovic, J. Brivio, I.V. Giacometti, A. Kis, Nat. Nanotech. 6, 147 (2011), doi: 10.1038/nnano.2010.279
• [4] S.H. Lee, D. Lee, W.S. Hwang, E. Hwang, D. Jena, W.J. Yoo, Appl. Phys. Lett. 104, 193113 (2014), doi: 10.1063/1.4878335
• [5] A. Castellanos-Gomez, M. Barkelid, A.M. Goossens, V. Calado, H.S. van der Zant, A.G. Steele, Nano Lett. 12, 6 (2012), doi: 10.1021/nl301164v
• [6] A. Srivastava, M. Sidler, A.V. Allain, D.S. Lembke, A. Kis, A. Imamoglu, Nat. Nanotech. 10, 491 (2015), doi: 10.1038/nnano.2015.60
• [7] Y.M. He, G. Clark, J.R. Schaibley, Y. He, J.C. Chen, Y.J. Wei, C.Y. Lu, Nat. Nanotech. 10, 497 (2015), doi: 10.1038/nnano.2015.75
• [8] M. Koperski, K. Nogajewski, A. Arora, J. Marcus, P. Kossacki, M. Potemski, Nat. Nanotech. 10, 503 (2015), doi: 10.1038/nnano.2015.67
• [9] M. Eagleson, W. de Gruyter, Concise Encyclopedia Chemistry, De Gruyter, Berlin 1994, p. 1129, doi: 10.1002/pauz.19890180116
• [10] A. Berkdemir, H.R. Gutierrez, A.R. Botello-Mendez, N. Perea-López, A.L. Elías, C. Chia, B. Wang, V.H. Crespi, F. Lopez-Urias, J.C. Charlier, H. Terrones, M. Terrones, Sci. Rep. 3, 1755 (2013), doi: 10.1021/nl3026357
• [11] W. Zhao, Z. Ghorannevis, K.K. Amara, J.R. Pang, M. Toh, X. Zhang, C. Kloc, P.H. Tan, G. Eda, Nanoscale 5, 9677 (2013)
• [12] H. Zeng, G.-B. Liu, J. Dai, Y. Yan, B. Zhu, R. He, L. Xie, S. Xu, X. Chen, W. Yao, X. Cui, Sci. Rep. 3, 1608 (2013), doi: 10.1038/srep01608
• [13] G. Plechinger, P. Nagler, J. Kraus, N. Paradiso, C. Strunk, C. Schuller, T. Korn, Phys. Status Solidi RRL 9, 457 (2015), doi: 10.1002/pssr.201510224
• [14] J. Shang, X. Shen, C. Cong, N. Peimyoo, B. Cao, M. Eginligil, T. Yu, ACS Nano 9, 647 (2015), doi: 10.1021/nn5059908
• [15] A.A. Mitioglu, P. Plochocka, J.N. Jadczak, W. Escoffier, G.L.J.A. Rikken, L. Kulyuk, D.K. Maude, Phys. Rev. B 88, 245403 (2013), doi: 10.1103/PhysRevB.88.245403
• [16] B. Zhu, X. Chen, X. Cui, Sci. Rep. 5, 9218 (2014), doi: 10.1038/srep09218
• [17] T. Scrace, Y. Tsai, B. Barman, L. Schweidenback, A. Petrou, G. Kioseoglou, I. Ozfidan, M. Korkusinski, P. Hawrylak, Nat. Nanotech. 10, 603 (2015), doi: 10.1038/nnano.2015.78
• [18] A. Castaldini, A. Cavallini, B. Fraboni, P. Fernandez, J. Piqueras J. Appl. Phys. 83, 2121 (1998), doi: 10.1103/PhysRevB.56.14897
• [19] R.S. Crandall, Phys. Rev. B 24, 7457 (1981), doi: 10.1103/PhysRevB.24.7457
• [20] P.B. Klein, B.V. Shanabrook, S.W. Huh, A.Y. Polyakov, M. Showronski, J.J. Sumakeris, M.J. O'Loughlin, Appl. Phys. Lett. 104, 052110 (2006), doi: 10.1063/1.2170144
• [21] K. Surowiecka, A. Wysmołek, R. Stepniewski, R. Bozek, K. Pakula, J.M. Baranowski, Acta Phys. Pol. A 108, 437 (2006), doi: 10.12693/APhysPolA.108.437
• [22] B. Pietka, J. Suffczynski, M. Goryca, T. Kazimierczuk, A. Golnik, P. Kossacki, A. Wysmolek, J.A. Gaj, R. Stepniewski, M. Potemski, Phys. Rev. B 87, 035310 (2013), doi: 10.1103/PhysRevB.87.035310

Identifiers

DOI

10.12693/APhysPolA.130.1176