Abstract
In this paper a novel hybrid approach to synthesise composite nanoparticles is presented. It is based on the laser ablation of a bulk target (Yb) immersed in a reversed micellar solution which contains nanoparticles of a different host material (TiO2 nanoparticles) previously synthesised by chemical method. This approach thus exploits the advantages of the chemical synthesis through reversed micellar solution (size control, nanoparticle stabilisation), and of the laser ablation (“clean” synthesis, no side reactions). Central role is played by the microscopic processes controlling the deposition of the ablated Yb atoms onto the surface of TiO2 nanoparticles which actually behave as nucleation seeds. The structural features of the resulting Yb@TiO2 composite nanoparticles have been studied by Transmission Electron Microscopy, whereas their peculiar optical properties have been explored by UV–Vis spectroscopy and steady-state fluorescence. Results consistently show the formation of Yb and TiO2 glued nanodomains to form nearly spherical and non-interacting nanoparticles with enhanced photophysical properties.
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References
Ali R, Yaseen M, Nadeem A, Bhatti SA, Baig MA (1999) Two-colour three-photon excitation of 6snf F-1, 3(3) and 6snp P-1(1), P-3(1, 2) Rydberg levels of Yb I. J Phys B 32:953–965
Brongersma ML, Kik PG (2007) Surface plasmon nanophotonics. Springer, Dordrecht, ISBN 978-1-4020-4349-9 (HB)
Brus L (1986) Electronic wave functions in semiconductor clusters: experiment and theory. J Phys Chem 90:2555–2560
Calandra P, Lombardo D, Neri F, Ruggirello A, Trusso S, Turco Liveri V (2010a) Synthesis of Yb nanoparticles by laser ablation of ytterbium target in sodium bis(2-ethylhexyl)sulfosuccinate reverse micellar solution. Mater Lett 64:576–579
Calandra P, Ruggirello A, Pistone A, Turco Liveri V (2010b) Structural and optical properties of novel surfactant coated TiO2-Ag based nanoparticles. J Clust Sci. doi:10.1007/s10876-010-0330-x
Dai CJ, Zhang S, Shu XW, Fang DW, Li J (1995) Pulsed electric-field ionization of stark states of neutral ytterbium. J Quant Spectrosc RA 53:179–188
Figgemeier E, Kylberg W, Constable E, Scarisoreanu M, Alexandrescu R, Morjan I, Soare I, Birjega R, Popovici E, Fleaca C, Gavrila-Florescu L, Prodan G (2007) Titanium dioxide nanoparticles prepared by laser pyrolysis: synthesis and photocatalytic properties. Appl Surf Sci 254:1037–1041
Fuke N, Fukui A, Islam A, Komiya R, Yamanaka R, Harima H, Han L (2009) Influence of TiO2/electrode interface on electron transport properties in back contact dye-sensitized solar cells. Sol Energy Mater Sol Cells 93:720–724
Gratzel M (2009) Recent advances in sensitized mesoscopic solar cells. Acc Chem Res 42:1788–1798
Kitano M, Tsujimaru K, Anpo M (2006) Decomposition of water in the separate evolution of hydrogen and oxygen using visible light-responsive TiO2 thin film photocatalysts: effect of the work function of the substrates on the yield of the reaction. Appl Catal A 314:179–183
Kowalczyk A, Falkowski M, Tolinski T, Chełkowska G (2006) Valence state and magnetism of CeNi4Si and YbNi4Si. Solid State Commun 139:5–8
Kuz’min MV, Loginov MV, Mittsev MA (2008) Nonmonotonic dependence of the work function of ytterbium nanofilms deposited on the Si(111)7 × 7 surface at room temperature on the film thickness. Phys Solid State 50:369–373
Lai SL, Chan MY, Fung MK, Lee CS, Hung LS, Lee ST (2002) Applications of ytterbium in organic light-emitting devices as high performance and transparent electrodes. Chem Phys Lett 366:128–133
Madhusudan Reddy K, Manorama SV, Ramachandra Reddy A (2002) Bandgap studies on anatase titanium dioxide nanoparticles. Mater Chem Phys 78:239–245
Mahshid S, Askari M, Sasani Ghamsari M (2007) Synthesis of TiO2 nanoparticles by hydrolysis and peptization of titanium isopropoxide solution. J Mater Process Technol 189:296–300
Okano M, Hara H, Muramatsum M, Doi K, Uetake S, Takasu Y, Takahashi Y (2010) Simultaneous magneto-optical trapping of lithium and ytterbium atoms towards production of ultracold polar molecules. Appl Phys B 98:691–696
Pal M, Pal U, Gonzalez RS, Mora ES, Santiago P (2009) Synthesis and photocatalytic activity of Yb doped TiO2 nanoparticles under visible light. J Nano Res 5:193–200
Pan G, Xuejun Z, Wenfang Z, Jing W, Qingju L (2010) First-principle study on anatase TiO2 codoped with nitrogen and ytterbium. J Semicond 31(3):032001-1–032001-6. doi:10.1088/1674-4926/31/3/032001
Serpone N, Lawless D, Khairutdinov R (1995) Size effects on the photophysical properties of colloidal anatase TiO2 particles—size quantization or direct transitions in this indirect semiconductor. J Phys Chem 99:16646–16654
Tang JX, Tong SW, Lee CS, Lee ST, He PM (2003) Photoemission study of interface formation between ytterbium and tris-(8-hydroxyquinoline) aluminium. Chem Phys Lett 380:63–69
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The authors thank Dr. Alessandro Sinopoli for fruitful discussions.
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Calandra, P., Lombardo, D., Pistone, A. et al. Structural and optical properties of novel surfactant-coated Yb@TiO2 nanoparticles. J Nanopart Res 13, 5833–5839 (2011). https://doi.org/10.1007/s11051-010-0133-x
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DOI: https://doi.org/10.1007/s11051-010-0133-x