Flexible Piezoelectric Nanogenerators Based on Sulfur Doped ZnO Nanowires Grown on Flexible PET Substrates

• Main Authors: I-Long Su, 蘇奕龍
• Other Authors: Cheng-Liang Hsu
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/35939578665154807179

碩士 === 國立臺南大學 === 電機工程學系碩博士班 === 102 === In this study, the S doped ZnO nanowires were successfully synthesized on flexible PET substrate by hydrothermal. The crystalline structure of these S doped samples were measured with SEM, EDS, XRD, PL and TEM. The doping concentration of sulfur into ZnO nanowires was 2.03 atm % in EDS. All XRD peaks of S doped ZnO shift to smaller angle. Photoluminescence spectra of S-doped ZnO nanowires show blue shift phenomenon of the green emissions compared with that of pure ZnO nanowires. By TEM EDS-Mapping analysis, we also can see that the S atomic were uniform distributed over the ZnO nanowires. In the S doped ZnO nanowires on flexible PET substrate, we combined it with device for measured the piezoelectric properties with different relative humidity (RH) and different temperature conditions. We also measured the piezoelectric properties with different relative humidity and used the 365nm UV lamp to discuss its resistance variation. In the last section, we used environmental vibration for driving our device to measure with different strain and 365nm UV lamp conditions to investigate the piezoelectric properties of it.