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A facile method to prepare copper-doped LiNbO3 nanocrystalline is reported. It should be mentioned here that the harmless citric acid plays a key role in soluble niobate at first and in the formation of the uniform gel. A detail thermal behaviour of the as-obtained gel was investigated by thermogravimetry and differential thermal analysis. The crystal structure, elemental composition and microstructural properties were characterised by X-ray diffraction analysis, X-ray photoelectron spectroscopy and scanning electron microscopy. Results indicate that a pure phase similar to LiNbO3, which has the cell parameters of a = b = 5.150(5) Å and c = 13.896(9) Å, can be obtained at a low temperature (∼550°C) and the mean particle size of the as-synthesised nanocrystalline is about 40 nm.
References
-
-
1)
-
13. Tauc, J., Grigorovici, R., Vancu, A.: ‘Optical properties and electronic structure of amorphous germanium’, Phys. Status Solidi, 1966, 15, p. 627 (doi: 10.1002/pssb.19660150224).
-
2)
-
9. Phillips, W., Amodei, J.J., Staebler, D.L.: ‘Optical and holographic storage properties of transition metal doped lithium niobate’, RCA Rev., 1972, 33, p. 94.
-
3)
-
5. Wang, K., Li, J.F., Liu, N.: ‘Piezoelectric properties of low-temperature sintered Li modified (Na, K)NbO3 lead-free ceramics’, Appl. Phys. Lett., 2008, 93, p. 092904 (doi: 10.1063/1.2977551).
-
4)
-
1. Hickman, K.: ‘Nanomaterials: it's a small, small world’ (Cambridge Scientific Abstracts, Cambridge, 2002.
-
5)
-
6. Chen, J., Li, Y.D., Lu, W.Q., et al: ‘Observation of surface-plasmon-polariton transmission through a silver film sputtered on a photorefractive substrate’, J. Appl. Phys., 2007, 102, p. 113109 (doi: 10.1063/1.2821310).
-
6)
-
12. Kubelka, P., Munk, F.: ‘Ein Beitrag zur Optik der Farbanstriche’, Z. Tech. Phys., 1931, 12, p. 593.
-
7)
-
11. Morales, A.E., Mora, E.S., Pal, U.: ‘Use of diffuse reflectance spectroscopy for optical characterization of un-supported nanostructures’, Rev. Mex. Fis., 2007, S53, p. 18.
-
8)
-
10. McMillen, D.K., Hudson, T.D., Wagner, J., Singleton, J.: ‘Holographic recording in specially doped lithium niobate crystals’, Opt. Express, 1998, 2, p. 491 (doi: 10.1364/OE.2.000491).
-
9)
-
3. Wang, Y., Suna, A., Mahler, W., et al: ‘PbS in polymers from molecules to bulk solids’, J. Chem. Phys., 1987, 87, (12), p. 7315 (doi: 10.1063/1.453325).
-
10)
-
4. Choi, J., King, N., Maggard, P.A.: ‘Maggard metastable Cu(I)-niobate semiconductor with a low-temperature, nanoparticle-mediated synthesis’, ACS Nano, 2013, 7, (2), p. 1699 (doi: 10.1021/nn305707f).
-
11)
-
8. Kong, Y., Liu, S., Xu, J.: ‘Recent advances in the photorefraction of doped lithium niobate crystals (review)’, Materials, 2012, 5, p. 1954 (doi: 10.3390/ma5101954).
-
12)
-
7. Sarkisov, S.S., Curley, M.J., Williams, E.K., et al: ‘Nonlinear optical waveguides produced by MeV ion implantation in LiNbO3’, Nucl. Instrum. Methods Phys. Res. B: Beam Interact. Mater. At., 2000, 166, p. 750 (doi: 10.1016/S0168-583X(99)01209-4).
-
13)
-
2. Koch, U., Fojtik, A., Weller, H., et al: ‘Photochemistry of semiconductor colloids. Preparation of extremely small ZnO particles, fluorescence phenomena and size quantization effects’, Chem. Phys. Lett., 1985, 122, (5), p. 507 (doi: 10.1016/0009-2614(85)87255-9).
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