Controlling the orientation of ZnO nanorod arrays using TiO2 thin film templates dip-coated by sol–gel
Source abstract
Abstract
The oriented ZnO nanorod arrays have been synthesized on a silicon wafer that coated with TiO2 films by aqueous chemical method. The morphologies, phase structure and the photoluminescence (PL) properties of the as-obtained product were investigated by field-emission scanning electron microscopy (FE-SEM), X-ray diffractometer (XRD), transmission electron microscope (TEM) and PL spectrum. The nanorods were about 100 nm in diameter and more than 1 µm in length, which possessed wurtzite structure with a c axis growth direction. The room-temperature PL measurement of the nanorod arrays showed strong ultraviolet emission. The effect of the crystal structure and the thickness of TiO2 films on the morphologies of ZnO nanostructures were investigated. It was found that the rutile TiO2 films were appropriate to the oriented growth of ZnO nanorod arrays in comparison with anatase TiO2 films. Moreover, flakelike ZnO nanostructures were obtained with increasing the thickness of anatase TiO2 films.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: ZnO doping and properties · Ga2O3 and related materials · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (22)
Show source-provided references
1. BagnallY.D., Yao T. (2000). ZnO as a novel photonic material for the UV region. Mater.Sci.Eng.B 75:190–19810.1016/S0921-5107(00)00372-X ↗
2. Emanetoglu N.W., Gorla C., Lu Y. (1999). Epitaxial ZnO piezoelectric thin films for saw filters. Mater.Sci.Semicond.Process 2:247–25210.1016/S1369-8001(99)00022-0 ↗
3. Golego N., Studenikin S.A., Cocivera M. (2000). Sensor photoresponse of thin-film oxides of zinc and titanium to oxygen gas. J.Electrochem.Soc.147:1592–159410.1149/1.1393400 ↗
4. Greene L.E., Law M., Goldberger J., Kim F., Johnson J.C., Zhang Y., Saykally R.J., Yang P.D. (2003). Low-temperature wafer-scale production of ZnO nanowire arrays. Angew. Chem. Int. Ed. 42:3031–303410.1002/anie.200351461 ↗
5. Greene L.E., Law M., Tan D.H., Montano M., Goldberger J., Somorjai G., Yang P.D. (2005). General route to vertical ZnO nanowire arrays using textured ZnO seeds. Nano Lett. 5:1231–123610.1021/nl050788p ↗
6. Henley1 S.J., Ashfold M.N.R., Nicholls D.P., Wheatley P., Cherns D. (2004). Controlling the size and alignment of ZnO microrods using ZnO thin film templates deposited by pulsed laser ablation. Appl. Phys.A 79:1169–117310.1007/s00339-004-2697-8 ↗
7. Hsu J.W.P., Tian Z.R., Simmons N.C., Matzke C.M., Voigt J.A., Liu J. (2005). Directed spatial organization Zinc Oxide nanorods. Nano Lett., 5:83–8610.1021/nl048322e ↗
8. Hu J.T., Odom T.W., Lieber C.M. (1999). Chemistry and physics in one dimension: synthesis and properties of nanowires and nanotubes. Acc. Chem. Res.32:435–44510.1021/ar9700365 ↗
9. Huang M.H., Mao S., Feick H., Yan H., Wu Y., Kind H., Weber E., Russo R., Yang P. (2001). Room-Temperature Ultraviolet Nanowire Nanolasers. Science 292:1897–189910.1126/science.1060367 ↗
10. KashiwabaY., Sugawara K., Haga K., Watanabe H., Zhang B.P., Segawa Y. (2002).Characteristics of c-axis oriented large grain ZnO films prepared by low-pressure MO-CVD method. Thin Solid Films 411:87–9010.1016/S0040-6090(02)00193-1 ↗
11. Koch M.H., Timbrell P.Y., Lamb R.N. (1995). The influence of film crystallinity on the coupling efficiency of ZnO optical modulator waveguides. Semicond.Sci.Technol. 10:1523–152710.1088/0268-1242/10/11/015 ↗
12. Lee J.Y., Choi Y.S., Kim J.H., Park M.O. (2002). Optimizing n-ZnO/p-Si heterojunctions for photodiode applications. Thin Solid Films 403:553–55710.1016/S0040-6090(01)01550-4 ↗
13. Li Y., Meng G.W., Zhang L.D. (2000). Ordered semiconductor ZnO nanowire arrays and their photoluminescence properties. Appl Phys Lett 76:2011–201310.1063/1.126238 ↗
14. Mass J., Bhattacharya P., Katiyar R.S. (2003). Effect of high substrate temperature on Al-doped ZnO thin films grown by pulsed laser deposition. Materials Science and Engineering B 103:9–1510.1016/S0921-5107(03)00127-2 ↗
15. Mullin J.W., 2000. Crystallization [M]; chapter 5, pp. 182–185
16. Mullin J.W., 2000. Crystallization [M]; chapter 6, pp. 248–250
17. Pan Z.W., Dai Z.R., Wang Z.L. (2001). Nanobelts of semiconducting oxides. Science 291:1947–194910.1126/science.1058120 ↗
18. Saito N., Haneda H., Sekiguchi T., Ohashi N., Sakaguchi I., Koumoto K. (2002). Low-Temperature fabrication of light-emitting Zinc Oxide micropatterns using self-assembled monolayers. Adv.Mater.14:418–42110.1002/1521-4095(20020318)14:6<418::AID-ADMA418>3.0.CO;2-K ↗
19. Sun Y., Fuge G.M., Ashfold M.N.R. (2004). Growth of aligned ZnO nanorod arrays by catalyst-free pulsed laser deposition methods. Chemical Physics Letters. 396:21–2610.1016/j.cplett.2004.07.110 ↗
20. Tian Z.R., Voigt J.A., Liu J., Mckenzie B., Mcdermott M.J. (2002). Biomimetic arrays of oriented helical ZnO nanorods and columns. J.Am.Chem.Soc.124:12954–1295510.1021/ja0279545 ↗
21. Vayssiers L. (2003).Growth of arrayed nanorods and nanowires of ZnO from aqueous solutions. Adv.Mater. 15:464–46610.1002/adma.200390108 ↗
22. Zhang Y.T., Du G.T., Wang X.Q., Li W.C., Yang X.T., Ma Y., Zhao B.J., Yang H.J., Liu D.L., Yang S.R. (2003). X-ray photoelectron spectroscopy study of ZnO films grown by metal-organic chemical vapor deposition. Journal of Crystal Growth 252:180–18310.1016/S0022-0248(02)02481-8 ↗