Syed Ghazanfar Hussain et al 2007 J. Phys. D: Appl. Phys. 40 7662 doi:10.1088/0022-3727/40/24/011
Syed Ghazanfar Hussain1,4, Deming Liu1,4, Xintang Huang2, Kamal Mahir Sulieman2, Jinping Liu2, Hairong Liu1 and Raihan Ur Rasool3
Show affiliationsHeterostructured ZnO : S/ZnO (S-doped ZnO ribbon with ZnO nanoteeth) nanosaws were synthesized by a one-step catalyst-free process through the chemical vapour transport and condensation method. Optimum selectivity and maximum nanosaw densities are obtained for growth temperatures in the range 400–450 °C. Our study suggests that the ribbons were ZnO : S while the teeth were only ZnO. Nanorods, nanoairplane, nanobelts and smooth surface nanotip-like structures were also obtained in our experiment at different growth temperatures. The photoluminescence spectrum of the nanosaws showed a strong visible emission band compared with undoped ZnO powder at room temperature. This strong visible emission in the hetrostructured nanosaws might be useful as a future UV-excited phosphor for producing bright and broad visible-wavelength light.
61.46.-w Structure of nanoscale materials
78.67.-n Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
Issue 24 (21 December 2007)
Received 17 September 2007, in final form 31 October 2007
Published 30 November 2007
Syed Ghazanfar Hussain et al 2007 J. Phys. D: Appl. Phys. 40 7662
J Mirapeix et al 2006 Meas. Sci. Technol. 17 2623
Noam Soker 1996 ApJ 460 L53
Priyadarshi Panda et al 2009 New J. Phys. 11 115001
L B Ioffe et al 1989 J. Phys. A: Math. Gen. 22 L1037
V A Elyukhin et al 2004 J. Phys.: Condens. Matter 16 S2217
Hans-Jürgen Matschull 1995 Class. Quantum Grav. 12 2621
A Yildiz et al 2009 J. Phys.: Condens. Matter 21 485403
J Estevez-Delgado and T Zannias 2004 Class. Quantum Grav. 21 5147
Eric Woods and Abraham Loeb 1999 ApJ 523 187