Formation of zinc oxide films using submicron zinc particle dispersions

The thermal oxidation of submicron metallic Zn particles was studied as a method to form nanostructured ZnO films. The particles used for this work were characterized by electron microscopy, x ray diffraction, and thermal analysis to evaluate the Zn-ZnO core shell structure, surface morphology, and oxidation characteristics. Significant nanostructural changes were observed for films annealed to 400 °C or higher, where nanoflakes, nanoribbons, nanoneedles, and nanorods were formed as a result of stress induced fractures arising in the ZnO outer shell due to differential thermal expansion between the metallic Zn core and the ZnO shell. Mass transport occurs through these defects due to the high vapor pressure for metallic Zn at temperatures above 230 °C, whereupon the Zn vapor rapidly oxidizes in air to form the ZnO nanostructures. The Zn particles were also incorporated into zinc indium oxide precursor solutions to form thin film transistor test structures to evaluate the potential of forming nanostructure...

[1]  K. Ibrahim,et al.  Oxidation of etched Zn foil for the formation of ZnO nanostructure , 2011 .

[2]  Chih-hung Chang,et al.  Low-temperature, high-performance, solution-processed indium oxide thin-film transistors. , 2011, Journal of the American Chemical Society.

[3]  Chih-hung Chang,et al.  Low Temperature, High-Performance, Solution-Processed Indium Oxide Based Thin Film Transistors , 2010 .

[4]  C. Cao,et al.  Catalyst-free combined synthesis of Zn/ZnO core/shell hollow microspheres and metallic Zn microparticles by thermal evaporation and condensation route , 2010 .

[5]  T. Hsieh,et al.  Highly stable precursor solution containing ZnO nanoparticles for the preparation of ZnO thin film transistors , 2010, Nanotechnology.

[6]  A. Nemati,et al.  Microstructural and electrical properties of varistors prepared from coated ZnO nanopowders , 2010 .

[7]  Q. Qiao,et al.  Size-Controlled Synthesis and Optical Properties of Small-Sized ZnO Nanorods , 2009 .

[8]  D. Keszler,et al.  Aqueous inorganic inks for low-temperature fabrication of ZnO TFTs. , 2008, Journal of the American Chemical Society.

[9]  G. P. Johari,et al.  Specific Heat, Melting, Crystallization, and Oxidation of Zinc Nanoparticles and Their Transmission Electron Microscopy Studies , 2008 .

[10]  Jooho Moon,et al.  Solution-processed ZnO nanoparticle-based semiconductor oxide thin-film transistors , 2008 .

[11]  Peng Jiang,et al.  Zinc oxide nanostructures: epitaxially growing from hexagonal zinc nanostructures , 2008, Nanotechnology.

[12]  Hyungjun Kim,et al.  ZnO thin films prepared by atomic layer deposition and rf sputtering as an active layer for thin film transistor , 2008 .

[13]  Henning Sirringhaus,et al.  Low-Temperature Sintering of In-Plane Self-Assembled ZnO Nanorods for Solution-Processed High-Performance Thin Film Transistors , 2007 .

[14]  B. Zhu,et al.  Laser sintering ZnO thick films for gas sensor application , 2007 .

[15]  Zhong Lin Wang.  Novel nanostructures of ZnO for nanoscale photonics, optoelectronics, piezoelectricity, and sensing , 2007 .

[16]  Hideo Nakajima,et al.  Formation of hollow ZnO through low-temperature oxidation of Zn nanoparticles , 2007 .

[17]  M. Jeong,et al.  Fabrication of Zn/ZnO nanocables through thermal oxidation of Zn nanowires grown by RF magnetron sputtering , 2006 .

[18]  C. Xie,et al.  Synthesis and characterization of ZnO nanostructures by two-step oxidation of Zn nano- and microparticles , 2006, Journal of Crystal Growth.

[19]  Liwei Lin,et al.  Fabrication and characterization of ZnO nanowires based UV photodiodes , 2006 .

[20]  Hua-Chi Cheng,et al.  Thin-film transistors with active layers of zinc oxide (ZnO) fabricated by low-temperature chemical bath method , 2006 .

[21]  Henning Sirringhaus,et al.  Solution-processed zinc oxide field-effect transistors based on self-assembly of colloidal nanorods. , 2005, Nano letters.

[22]  Weon-Pil Tai,et al.  EFFECT OF PREHEATING TEMPERATURE ON STRUCTURAL AND OPTICAL PROPERTIES OF ZNO THIN FILMS BY SOL–GEL PROCESS , 2005 .

[23]  A. Chernykh,et al.  Thin polycrystalline zinc oxide films obtained by oxidation of metallic zinc films , 2005 .

[24]  E. Suh,et al.  Influence of ambient gases on the morphology and photoluminescence of ZnO nanostructures synthesized with nickel oxide catalyst , 2004 .

[25]  S. Lau,et al.  Photoluminescence study of ZnO films prepared by thermal oxidation of Zn metallic films in air. , 2003 .

[26]  Clément Sanchez,et al.  Oriented ZnO thin films synthesis by sol–gel process for laser application , 2003 .

[27]  Jih-Jen Wu,et al.  LOW-TEMPERATURE GROWTH OF WELL-ALIGNED ZNO NANORODS BY CHEMICAL VAPOR DEPOSITION , 2002 .

[28]  C. Xie,et al.  Function of oxide film during the thermal oxidation process of Zn nanoparticles , 2000 .

[29]  C. Xie,et al.  The thermal physical formation of ZnO nanoparticles and their morphology , 2000 .

[30]  Shinzo Takata,et al.  Highly conductive and transparent zinc oxide films prepared by rf magnetron sputtering under an applied external magnetic field , 1982 .

[31]  Zhong Lin Wang,et al.  Metal−Semiconductor Zn−ZnO Core−Shell Nanobelts and Nanotubes , 2004 .