Fabrication of luminescent monolayered tungsten dichalcogenides quantum dots with giant spin-valley coupling

ACS Nano

Volumn 7, Issue 9, 2013, Pages 8214-8223

  Lin, Liangxu ^a   Xu, Yaoxian ^a   Zhang, Shaowei ^b   Ross, Ian M ^a   Ong, Albert C M ^a   Allwood, Dan A ^a  

^a UNIVERSITY OF SHEFFIELD   (United Kingdom)

^b UNIVERSITY OF EXETER   (United Kingdom)

Author keywords

luminescence; monolayered tungsten dichalcogenides; quantum dots; spin valley coupling

Indexed keywords

CONDUCTION-BAND MINIMUM; DICHALCOGENIDES; FLUORESCENT LABELS; INDIRECT SEMICONDUCTOR; LUMINESCENCE PEAK; QUANTUM INFORMATION TECHNOLOGIES; SPLIT VALENCE BAND; STRONG LUMINESCENCE;

INFORMATION TECHNOLOGY; LUMINESCENCE; OPTOELECTRONIC DEVICES; QUANTUM OPTICS; SEMICONDUCTOR QUANTUM DOTS; TUNGSTEN;

LANDFORMS;

QUANTUM DOT; SULFIDE; TUNGSTEN DERIVATIVE;

ARTICLE; CONFORMATION; CRYSTALLIZATION; LUMINESCENCE; MATERIALS TESTING; METHODOLOGY; PARTICLE SIZE; SYNTHESIS;

CRYSTALLIZATION; LUMINESCENT MEASUREMENTS; MATERIALS TESTING; MOLECULAR CONFORMATION; PARTICLE SIZE; QUANTUM DOTS; SULFIDES; TUNGSTEN COMPOUNDS;

EID: 84884914732     PISSN: 19360851     EISSN: 1936086X     Source Type: Journal    
DOI: 10.1021/nn403682r     Document Type: Article

References (27)

1. 2 Phys Rev. B 2011, 84, 155413
2. 2 Nanoparticles: Superior Lubricants for Harsh Conditions Adv. Mater. 2003, 15, 651-655
3. Merki, D.; Hu, X. Recent Developments of Molybdenum and Tungsten Sulfides as Hydrogen Evolution Catalysts Energy Environ. Sci. 2011, 4, 3878-3888
4. Wu, M.; Wang, Y.; Lin, X.; Yu, N.; Wang, L.; Wang, L.; Hagfeldt, A.; Ma, T. Economical and Effective Sulfide Catalysts for Dye-Sensitized Solar Cells as Counter Electrodes Phys. Chem. Chem. Phys. 2011, 13, 19298-19301
5. 5 Room Temperature Modulation and Ambipolar Behavior Appl. Phys. Lett. 2012, 101, 013107
6. Coleman, J. N.; Lotya, M.; O'Neill, A.; Bergin, S. D.; King, P. J.; Khan, U.; Young, K.; Gaucher, A.; De, S.; Smith, R. J. et al. Two-Dimensional Nanosheets Produced by Liquid Exfoliation of Layered Materials Science 2011, 331, 568-571
7. 2 Monolayers Nano Lett. 2013, 13, 3447-3454
8. Jiang, H. Electronic Band Structures of Molybdenum and Tungsten Dichalcogenides by the GW Approach J. Phys. Chem. C 2012, 116, 7664-7671
9. Liu, Z.; Suenaga, K.; Wang, Z.; Shi, Z.; Okunishi, E.; Iijima, S. Identification of Active Atomic Defects in A Monolayered Tungsten Disulphide Nanoribbon Nat. Commun. 2011, 2, 213
10. Lin, L.; Zhang, S. Creating High Yield Water Soluble Luminescent Graphene Quantum Dots via Exfoliating and Disintegrating Carbon Nanotubes and Graphite Flakes Chem. Commun. 2012, 48, 10177-10179
11. Martin-Litas, I.; Vinatier, P.; Levasseur, A.; Dupin, J. C.; Gonbeau, D.; Weill, F. Characterisation of r.f. Sputtered Tungsten Disulfide and Oxysulfide Thin Films Thin Solid Films 2002, 4156, 1-9
12. z (M = W, Ti) Studied by XPS Appl. Surf. Sci. 2004, 236, 377-386
13. 2. Experimental and Theoretical Studies J. Chem. Soc., Faraday Trans. 1996, 92, 4561-4566
14. Yu, X.; Liu, F.; Wang, Z.; Chen, Y. Auger Parameters for Sulfur-Containing Compounds Using A Mixed Aluminum-Silver Excitation Source J. Electron Spectrosc. Relat. Phenom. 1990, 50, 159-166
15. Shpak, A. P.; Korduban, A. M.; Kulikov, L. M; Krvshchuk, T. V.; Konig, N. B.; Kandvba, V. O. XPS Studies of The Surface of Nanocrystalline Tungsten Disulfide J. Electron Spectrosc. Relat. Phenom. 2010, 181, 234-238
16. 2 in Aqueous Suspension Phys. Rev. B 2002, 65, 125407
17. Ramasubramaniam, A. Large Excitonic Effects in Monolayers of Molybdenum and Tungsten Dichalcogenides Phys. Rev. B 2012, 86, 115409
18. 2: A New Direct-Gap Semiconductor Phys. Rev. Lett. 2010, 105, 136805
19. Wang, Q. H.; Kalantar-Zadeh, K.; Kis, A.; Coleman, J. N.; Strano, M. S. Electronics and Optoelectronics of Two-Dimensional Transition Metal Dichalcogenides Nat. Nanotechnol. 2012, 7, 699-712
20. Karge, H. G.; Raskó, J. Hydrogen Sulfide Adsorption on Faujasite-Type Zeolites with Systematically Varied Si-Al Ratios J. Colloid Interface Sci. 1978, 64, 522-532
21. 2 Nanoclusters Phys. Rev. B 2000, 62, 10995-11005
22. 2 ACS Nano 2013, 7, 791-797
23. Kam, K. K.; Parkinson, B. A. Detailed Photocurrent Spectroscopy of the Semiconducting Group VIB Transition Metal Dichalcogenides J. Phys. Chem. 1982, 86, 463-467
24. Zeng, H.; Liu, G.-B.; Dai, J.; Yan, Y.; Zhu, B.; He, R.; Xie, L.; Xu, S.; Chen, X.; Yao, W.; Cui, X. Optical Signature of Symmetry Variations and Spin-Valley Coupling in Atomically Thin Tungsten Dichalcogenides Sci. Rep. 2013, 3, 1608
25. 2 and Isomorphous Nanoclusters in the Quantum Confinement Regime J. Appl. Phys. 1997, 81, 7934-7944
26. 2 and Other Group-VI Dichalcogenides Phy. Rev. Lett. 2012, 108, 196802
27. Zhu, Z. Y.; Cheng, Y. C.; Schwingenschlögl, U. Giant Spin-Orbit-Induced Spin Splitting in Two-Dimensional Transition-Metal Phys. Rev. B 2011, 84, 153402