Self-assembled three-dimensional Al-doped ZnO nanorod networks

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Al-doped ZnO nanorod networks and other microstructures have been grown by a thermal evaporation–deposition method with a mixture of ZnS and Al_2O_3 powders as precursor. Some of the grown structures consist of star-like arrays of nanorods arranged around a central axis with nearly four-fold symmetry. Scanning electron microscopy (SEM) observations indicate that these arrays are the origin of large well-ordered three-dimensional networks of nanorods resulting from the perpendicular growth of lateral branches in every nanorod. CL in SEM has been used to study the influence of Al doping on the emission. Regions with high Al content, about 1 at%, show a luminescence band at about 1.98 eV.
© 2011 IOP Publishing Ltd This work was supported by MICINN (MAT2009-07882 and CSD2009-00013) and UCM-BSCH (GR35/10-910146).
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[1] Wang Z L 2004 J. Phys.: Condens. Matter 16 R829. [2] Ortega Y, Fernández P and Piqueras J 2009 J. Appl. Phys. 105 054315. [3] Ortega Y, Fernández P and Piqueras J 2007 Nanotechnology 18 115606. [4] Ortega Y, Fernández P and Piqueras J 2009 J. Cryst. Growth 311 3231. [5] Alemán B, Fernández P and Piqueras J 2009 Appl. Phys. Lett. 95 013111. [6] Tang H, Zhu L, He H, Ye Z, Zhang Y, Zhi M, Yang Z, Zhao B and Li T 2006 J. Phys. D: Appl. Phys. 39 2696. [7] He H P, Tang H P, Ye Z Z, Zhu L P, Zhao B H, Wang L and Li X H 2007 Appl. Phys. Lett. 90 023104. [8] Kuo C-L, Wang R-C, Liu C-P and Huang J-L 2008 Nanotechnology 19 035605. [9] Gao P and Wang Z L 2002 J. Phys. Chem. B 106 12653. [10] Wen J G, Lao J Y, Wang D Z, Kyaw T M, Foo Y L and Ren Z F 2003 Chem. Phys. Lett. 372 717. [11] Grym J, Fernández P and Piqueras J 2005 Nanotechnology 16 931. [12] Wang R, Liu C, Huang J and Chen S 2006 Appl. Phys. Lett. 88 023111. [13] Suchea M, Christoulakis S, Karsarakis N, Kitsopoulos T and Kirikiadis G 2007 Thin Solid Films 515 6562. [14] Studenikin S A, Colego N and Cocivera N 1998 J. Appl. Phys. 84 2287. [15] Liu M, Kitai H H and Mascher P 1992 J. Lumin. 54 35. [16] Ortega Y, Fernández P and Piqueras J 2010 J. Nanosci. Nanotechnol. 10 502.