Synthesis and application of Al doped ZnO nanowires

• Main Authors: Duo-Xi Hsu, 許多喜
• Other Authors: Cheng-Liang Hsu
• Format: Others
• Language: en_US
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/96419335712242683590

碩士 === 國立臺南大學 === 電機工程學系碩博士班 === 103 === In this work, Al:ZnO nanowires were successfully synthesized on glass and PET substrates by hydrothermal method, and also analyzed by SEM, EDS, XRD, PL and TEM. The length of Al:ZnO is about 1.8 µm while the atomic doping concentration of Al is 1.5 %. In XRD and PL images, we can see the peak shifted, which were affected by Al doping. By TEM, 0.52 nm lattice spacing was observed, which shows structurally uniform single crystals with a wurtzite structure in our nanowires. We measured the electrical properties, made the gas sensor for detecting different concentrations of alcohol and acetone, humidity sensor for measuring the response in different related humidity, photodetector for measuring the response under different wavelength of excitation light and used the 360 nm UV lamp to discuss the photoresponse. Nanoparticles modified electrode was fabricated for detecting different concentrations of glucose as biosensor. Finally, piezoelectric devices were fabricated which grown on PET substrate, measuring the output current and voltage at atmospheric environment and in different relate humidity.