TY - JOUR
T1 - High sensitivity of a ZnO nanowire-based ammonia gas sensor with Pt nano-particles
AU - Chang, Shoou Jinn
AU - Weng, Wen Yin
AU - Hsu, Cheng Liang
AU - Hsueh, Ting Jen
N1 - Funding Information:
This work was supported in part by the Center for Frontier Materials and Micro/Nano Science and Technology, National Cheng Kung University, Taiwan (D97-2700). This work was also in part supported by the Advanced Optoelectronic Technology Center, National Cheng Kung University, under projects from the Ministry of Education.
PY - 2010/12
Y1 - 2010/12
N2 - We report the growth of high-density single crystalline ZnO nanowires on a patterned ZnO:Ga/SiO2/Si template, the adsorption of Pt nano-particles on the nanowire surface, and the fabrication of a ZnO nanowire-based NH3 gas sensor. It was found that the sensor responses were 22.5% and 36% for the nanowires without and with Pt adsorption when the chamber was injected with 1000 ppm of NH3 gas at 300 °C. With Pt adsorption, it was found that the measured sensitivities were around 16%, 22%, 26% and 36% when the concentration of the injected NH3 gas was 100, 200, 500 and 1000 ppm, respectively.
AB - We report the growth of high-density single crystalline ZnO nanowires on a patterned ZnO:Ga/SiO2/Si template, the adsorption of Pt nano-particles on the nanowire surface, and the fabrication of a ZnO nanowire-based NH3 gas sensor. It was found that the sensor responses were 22.5% and 36% for the nanowires without and with Pt adsorption when the chamber was injected with 1000 ppm of NH3 gas at 300 °C. With Pt adsorption, it was found that the measured sensitivities were around 16%, 22%, 26% and 36% when the concentration of the injected NH3 gas was 100, 200, 500 and 1000 ppm, respectively.
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U2 - 10.1016/j.nancom.2010.09.005
DO - 10.1016/j.nancom.2010.09.005
M3 - Article
AN - SCOPUS:79951954610
SN - 1878-7789
VL - 1
SP - 283
EP - 288
JO - Nano Communication Networks
JF - Nano Communication Networks
IS - 4
ER -