TY - JOUR
T1 - Ammonia sensing characteristic of a Pt nanoparticle/aluminum-doped zinc oxide sensor
AU - Chen, Huey Ing
AU - Chi, Cheng Yu
AU - Chen, Wei Cheng
AU - Liu, I. Ping
AU - Chang, Ching Hong
AU - Chou, Tzu Chieh
AU - Liu, Wen Chau
N1 - Funding Information:
Part of this work was supported by the Ministry of Science and Technology of the Republic of China under Contract No. MOST- 100-2221-E-006-224 and the Advanced Optoelectronic Technology Center, National Cheng-Kung University. Technical assistance from Miss Hui-Jung Shih, Instrument Center, National Cheng-Kung University is also appreciated.
Funding Information:
Part of this work was supported by the Ministry of Science and Technology of the Republic of China under Contract No. MOST- 100-2221-E-006-224 and the Advanced Optoelectronic Technology Center, National Cheng-Kung University . Technical assistance from Miss Hui-Jung Shih, Instrument Center, National Cheng-Kung University is also appreciated.
PY - 2018/8/15
Y1 - 2018/8/15
N2 - Pt nanoparticles (NPs) are deposited on a sputtered aluminum-doped zinc oxide (AZO) layer to form a new Pt NP/AZO ammonia sensor. As compared to the pristine sputtered AZO layer, the studied Pt NP/AZO device shows significant improvements in the ammonia sensing response and sensing speed due to the effectively catalytic activity of the Pt metal. Experimentally, under 1000 ppm NH3/air gas at 300 °C, a sensing response of 2183 is obtained for the studied Pt NP/AZO device, which is higher than that (24) of the pristine AZO one. The response and recovery time constants at 300 °C (350 °C) of 133 (24) s and 14 (4) s are acquired, respectively, for the studied Pt NP/AZO sensor under 1000 ppm NH3/air gas. Therefore, based on the advantages mentioned above and the benefits of low cost, simple structure, and easy fabrication, the studied Pt NP/AZO structure is suitable to produce high-performance metal-oxide-based ammonia sensors.
AB - Pt nanoparticles (NPs) are deposited on a sputtered aluminum-doped zinc oxide (AZO) layer to form a new Pt NP/AZO ammonia sensor. As compared to the pristine sputtered AZO layer, the studied Pt NP/AZO device shows significant improvements in the ammonia sensing response and sensing speed due to the effectively catalytic activity of the Pt metal. Experimentally, under 1000 ppm NH3/air gas at 300 °C, a sensing response of 2183 is obtained for the studied Pt NP/AZO device, which is higher than that (24) of the pristine AZO one. The response and recovery time constants at 300 °C (350 °C) of 133 (24) s and 14 (4) s are acquired, respectively, for the studied Pt NP/AZO sensor under 1000 ppm NH3/air gas. Therefore, based on the advantages mentioned above and the benefits of low cost, simple structure, and easy fabrication, the studied Pt NP/AZO structure is suitable to produce high-performance metal-oxide-based ammonia sensors.
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U2 - 10.1016/j.snb.2018.04.019
DO - 10.1016/j.snb.2018.04.019
M3 - Article
AN - SCOPUS:85045209999
VL - 267
SP - 145
EP - 154
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
ER -