| 題名: | Effect of adding Au nanoparticles and KOH on the electrical and humidity-sensing properties of WO3 particles |
| 作者: | Su, PG (Su, Pi-Guey)
Liao, WH (Liao, Wei-Hua) |
| 貢獻者: | 化學系 |
| 關鍵詞: | Humidity sensor
WO3
KOH
Au NPs
Adsorption dynamic analysis
Complex impedance spectra |
| 日期: | 2017-11 |
| 上傳時間: | 2018-01-25 14:05:28 (UTC+8) |
| 摘要: | Impedance-type humidity sensors were fabricated from WO3 particles to which had been added KOH or Au nanoparticles (Au NPs). The humidity-sensing (sensitivity and linearity) and electrical properties of the WO3 were improved. Adsorption dynamic analysis and molecular mechanical calculations revealed that the sensitivity of KOH-added WO3 exceeded that of Au NPs-added WO3. The sensor that was made of the KOH-added WO3 exhibited favorable impedance, high sensitivity, good linearity, low hysteresis, a short response/recovery time and high long-term stability over the studied humidity range. Complex impedance spectra were used to investigate the humidity-sensing mechanism of the KOH-added WO3. (C) 2017 Elsevier B.V. All rights reserved. |
| 關聯: | SENSORS AND ACTUATORS B-CHEMICAL 卷: 252 頁碼: 854-861 |
| 顯示於類別: | [化學系所] 期刊論文
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