Growth and Photoluminescence Properties of ZnO Microrods

Abstract:

Zinc oxide (ZnO) microrods were grown by the floating zone method, the as-grown ZnO microrods have uniform size. Scanning electron microscope image reveals that the ZnO microrods are grown with a hexagonal structure, well faceted ends and side surfaces. Most of ZnO microrods have diameters of about 20-30 mm and lengths of about 1-2 mm. Polarizing microscopy image of ZnO microrods shows that they have high crystal quality. The X-Ray diffraction pattern shows that microrods have vertical orientation and the crystal structure of ZnO is wurtzite type. At low exciting intensity, ultra violet range emission was found and the growth process of ZnO microrods was discussed.

• Periodical: Advanced Materials Research (Volumes 284-286)
• Pages: 954-957
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.284-286.954
• Online since: July 2011
• Authors: Xing Yuan Guo, Zhan Hui Ding, Jing Zhou, Guan Lin Feng, Hong Zhi Shen, Da Peng Xu
• Keywords: Photoluminescence (PL), SEM, X-Ray Diffraction (XRD), Zinc Oxide (ZnO)

References

[1] M. Willander , et al., Nanotechnology, Vol. 20 (2009), p.332001

[2] C. Czekalla, et al., Phys. Status Solidi B, Vol. 247 (2010), p.1282

[3] D.J. Gargas, et al., Acs Nano, Vol. 4 (2010), p.3270

[4] J. Dai, et al., Appl. Phys. Lett., Vol. 95 (2009) p.241110

[5] X.H. Zhang, et al., Appl. Phys. Lett., Vol. 87 (2005) p.123111

[6] L.E. Greene, et al., Nano Lett.,. Vol. 5 (2005) p.1231

[7] Z.L. Wang, Adv. Mater., Vol. 15 (2003), p.432

[8] H.X. Dong , et al., J. Phys. Chem. C,. Vol. 114 (2010), p.17369

[9] S.A. Kamaruddin, et al., Microelectronics International, Vol. 27 (2010), p.166

[10] J.H. Guo, et al., Journal of Physics-Condensed Matter, Vol. 17 (2005), p.235

[11] X.Y. Guo, et al., Chem. J. Chinese university, Vol. 27 (2006), p.1811

[12] J.B. Baxter, F. Wu and E.S. Aydil, Appl. Phys. Lett., Vol. 83 (2003), p.3797

[13] W.J. Li , et al., J. Cryst. Growth, Vol. 203 (1999), p.186

[14] W.I. Park , et al., Appl. Phys. Lett., Vol. 80 (2002), p.4232

[15] D.M. Hofmann , et al., Appl. Phys. A, Vol. 88 (2007), p.147

[16] Y.W. Heo , D.P. Norton, and S.J. Pearton, J. Appl. Phys., Vol. 98 (2005), p.073502

[17] D.M. Bagnall , et al., Appl. Phys. Lett., Vol. 73 (1998), p.1038

[18] Z.K. Tang , et al., Appl. Phys. Lett., Vol. 72 (1998), p.3270

[19] Y. Chen , et al., J. Appl. Phys., Vol. 84 (1998), p.3912