Comparison of ZnO nanostructures grown using pulsed laser deposition, metal organic chemical vapor deposition, and physical vapor transport

This article compares the forms and properties of ZnO nanostructures grown on Si(111) and c-plane sapphire (c-Al(2)O(3)) substrates using three different growth processes: metal organic chemical vapor deposition (MOCVD), pulsed laser deposition (PLD), and physical vapor transport (PVT). A very wide range of ZnO nanostructures was observed, including nanorods, nanoneedles, nanocombs, and some novel structures resembelling "bevelled" nanowires. PVT gave the widest family of nanostructures. PLD gave dense regular arrays of nanorods with a preferred orientation perpendicular to the substrate plane on both Si and c-Al(2)O(3) substrates, without the use of a catalyst. X-ray diffraction (XRD) studies confirmed that nanostructures grown by PLD were better crystallized and more highly oriented than those grown by PVT and MOCVD. Samples grown on Si showed relatively poor XRD response but lower wavelength emission and narrower linewidths in PL studies.

[1]  Steiner,et al.  Lattice dynamics and hyperfine interactions in ZnO and ZnSe at high external pressures. , 1996, Physical review. B, Condensed matter.

[2]  S. Studenikin,et al.  Fabrication of green and orange photoluminescent, undoped ZnO films using spray pyrolysis , 1998 .

[3]  Dapeng Yu,et al.  Ultraviolet-emitting ZnO nanowires synthesized by a physical vapor deposition approach , 2001 .

[4]  Zhong Lin Wang,et al.  Spontaneous Polarization-Induced Nanohelixes, Nanosprings, and Nanorings of Piezoelectric Nanobelts , 2003 .

[5]  H. Hou,et al.  Structure-direct assembly of hexagonal pencil-like ZnO group whiskers , 2004 .

[6]  Zhong Lin Wang.  Zinc oxide nanostructures: growth, properties and applications , 2004 .

[7]  H. Morkoç,et al.  A COMPREHENSIVE REVIEW OF ZNO MATERIALS AND DEVICES , 2005 .

[8]  M. Y. Yau,et al.  Synthesis of ZnO hexagonal columnar pins by chemical vapor deposition , 2005 .

[9]  D. Rogers,et al.  Growth of ZnO thin film on SiO2/Si substrate by pulsed laser deposition and study of their physical properties , 2006 .

[10]  C. Jagadish,et al.  Observation of enhanced defect emission and excitonic quenching from spherically indented ZnO , 2006 .

[11]  J. Fei,et al.  Synthesis and growth mechanism: A novel comb-like ZnO nanostructure , 2006 .

[12]  Olivier Durand,et al.  Use of ZnO thin films as sacrificial templates for metal organic vapor phase epitaxy and chemical lift-off of GaN , 2007 .

[13]  Yicheng Lu,et al.  Integrated ZnO nanotips on GaN light emitting diodes for enhanced emission efficiency , 2007 .

[14]  M. Razeghi,et al.  Investigations of ZnO Thin Films Grown on c-Al2O3 By Pulsed Laser Deposition in N2 + O2 Ambient , 2008 .

[15]  Minoru Obara,et al.  Catalyst-Free Growth of High-Quality ZnO Nanorods on Si(100) Substrate by Two-Step, Off-Axis Pulsed-Laser Deposition , 2008 .

[16]  Wenhua Zhang,et al.  Oriented Attachment in Vapor: Formation of ZnO Three-Dimensional Structures by Intergrowth of ZnO Microcrystals , 2008 .

[17]  Zhong Lin Wang,et al.  Cellular level biocompatibility and biosafety of ZnO nanowires , 2008 .

[18]  D. T. Pegg.  Taking the trip of a lifetime , 2008 .

[19]  M. Razeghi,et al.  MOCVD growth of ZnO nanostructures using Au droplets as catalysts , 2008, SPIE OPTO.

[20]  M. Razeghi,et al.  Characterization of ZnO thin films grown on c-sapphire by pulsed laser deposition as templates for regrowth of ZnO by metal organic chemical vapor deposition , 2009, OPTO.