The study on synthesis of one-dimensional zinc oxide nanostructure by low-temperature aqueous solution method and their characteristics

• Main Authors: Chen-Huan Yuan, 袁晨桓
• Other Authors: Chien-Sheng Huang
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/77642855118341792510

碩士 === 雲林科技大學 === 光學電子工程研究所 === 97 === The 1D-ZnO nanostructures were prepared by low temperature aqueous solution, which ZnO seed layer was deposited on glass structure by the RF sputtering system for 30 minute. During the growth of ZnO seed layer, the working pressure of the chamber was 15 mtorr while the RF power was 150 W and the ratio of Ar gas flow was 20 sccm. After the growth of ZnO seed layer, the aqueous solution of Zn(NO3)2•6H2O and C6H12N4 was prepared, while keeping the same molar ratio of 1:1. Finally, the effects of aqueous solution with different concentration and temperature for 1 hour on the growth of 1D-ZnO nanostructures have been investigated in detail. The morphology and composition of the ZnO nanowires was observed using a HITACHI S-4800 Field-emission scanning electron microscopy (FE-SEM), EDS and the X-ray diffraction (XRD) patterns were acquired using a PHILIPS X''PERT Pro MPD equipment provided with a Cu tube with Kα radiation (λ = 1.54��), scanning in the 20–95° 2θ range with increments of 0.05ο. Field-emission gas ionization sensing experiments were carried out by an ultrahigh vacuum measurement system. The apparatus for field-emission gas ionization sensors consists of two electrodes. The ZnO nanowires synthesized with 0.1M has lowest breakdown voltage.