P1.7.6 CO Gas Sensing Using Ga Doping ZnO Nanorods by Hydrothermal Method: Effects of Defects-Controlled

Duy-Thach Phan & Gwiy-Sang Chung
We report here the synthesis Ga-doped ZnO nanorods by hydrothermal (HT) method and investigate the effects of Ga-doping on their CO sensing properties. It is found that Ga doping cancel out oxygen-related defects (oxygen interstitial) based on the results of photoluminescence (PL) experiments and further confirmed by the CO sensing experiment. The defect-controlled, which are donor-(shallow donor and zinc interstitial) and acceptor-related (oxygen interstitial) ones, in ZnO nanorods were adjusted by Ga doping level. The...