By means of scanning electron microscopope and X-ray diffraction, microstructural evolution of well-aligned ZnO nanorod array films was studied. The films were prepared on a glass using direct deposition method in an aqueous solution. The experimental results show that the highly oriented rods grew from the randomly oriented crystals. Those rod-like randomly oriented crystals began to impinge on other neighboring crystals and their growth became physically limited; only the rods perpendicular to the substrate were allowed to grow freely. This kinetically controlled nucleation and growth would be responsible for producing the uniformly oriented nanorods. During the ZnO rods' growth, the topology of their top faces changed from fiat, prismatic to finally flat.
参考文献
| [1] | Wang ZL .Zinc oxide nanostructures: growth, properties and applications[J].Journal of Physics. Condensed Matter,2004(25):R829-R858. |
| [2] | Huang M H;Mao S;Feick H et al.Room-temperature Ultraviolet Nanowire Nanolasers[J].Science,2001,292:1897-1899. |
| [3] | Pearton SJ;Norton DP;Ip K;Heo YW;Steiner T .Recent advances in processing of ZnO[J].Journal of Vacuum Science & Technology, B. Microelectronics and Nanometer Structures: Processing, Measurement and Phenomena,2004(3):932-948. |
| [4] | Wu J;Liu S C .Low-temperature Growth of Well-alligned ZnO Nanorods by Chemical Vapor Deposition[J].Advanced Materials,2002,14:215-218. |
| [5] | Wessler B.;Steinecker A.;Mader W. .Epitaxial growth of ZnO thin films on ScAlMgO4 (0001) by chemical solution deposition[J].Journal of Crystal Growth,2002(3/4):283-292. |
| [6] | Changsong Liu;Yoshitake Masuda;Yunying Wu;Osamu Takai .A simple route for growing thin films of uniform ZnO nanorod arrays on functionalized Si surfaces[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2006(1/2):110-114. |
| [7] | Vayssieres L .Growth of Arrayed Nanorods and Nanowires of ZnO from Aqueous Solutions[J].Advanced Materials,2003,15:464-466. |
| [8] | Saito N;Haneda H;Seo W S et al.Low-temperature Fabrication of Light-Emitting Zinc Oxide Micropatterns Using Self-Assembled Monolayers[J].Langmuir,2001,17:1461-1463. |
| [9] | S.Muthukumar;C.R.Gorla;N.W.emanetoglu .Control of morphology and orientation of ZnO thin films grown on SiO_2/Si substrates[J].Journal of Crystal Growth,2001(2/4):197-201. |
| [10] | Yamabi S;Imai H .Growth Conditions for Wurtzite Znic Oxide Films in Aqueous Solutions[J].Journal of Materials Chemistry,2002,12:3773-3778. |
| [11] | Nishizawa H.;Yuasa K. .Preparation of highly oriented ZnO thin film under hydrothermal conditions[J].Journal of Materials Science Letters,1998(12):985-987. |
| [12] | Sai-Chang Liu;Jih-Jen Wu .Low-temperature and catalyst-free synthesis of well-aligned ZnO nanorods on Si (100)[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2002(10):3125-3129. |
| [13] | Li WJ.;Zhong WZ.;Yin ZW.;Shi EW. .Growth mechanism and growth habit of oxide crystals[J].Journal of Crystal Growth,1999(1/2):186-196. |
| [14] | Hartman P;Perdok W G .On the Telations between Structure and Morphology of Crystals[J].Acta Crystallographica,1955,8:49-55. |
| [15] | Hartman P;Perdok W G .On the Relations between Structure and Morphology of Crystals Ⅱ[J].Acta Crystallographica,1955,8:525-531. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%