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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b03433
|2 doi
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|a eng
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| 100 |
1 |
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|a Su, Chun-Hao
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Highly Responsive PEG/Gold Nanoparticle Thin-Film Humidity Sensor via Inkjet Printing Technology
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|c 2019
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|a Text
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|a ƒaComputermedien
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|a Date Revised 20.11.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In this study, a highly responsive humidity sensor is developed by printing gold nanoparticles (GNPs) grafted with a hygroscopic polymer. These GNPs are inkjet-printed to form a uniform thin film over an interdigitated electrode with a controllable thickness by adjusting the printing parameters. The resistance of the printed GNP thin film decreases significantly upon exposure to water vapor and exhibits a semi-log relationship with relative humidity (RH). The sensor can detect RH variations from 1.8 to 95% with large resistance changes up to 4 orders of magnitude with no hysteresis and small temperature dependence. In addition, with a small thickness, the sensor can reach absorption equilibrium quickly with response and recovery times of ≤1.2 and ≤3 s, respectively. The fast response to humidity changes also allows the GNP thin-film sensor to distinguish signals from intermittent humidification/dehumidification cycles with a frequency up to 2.5 Hz. The printed sensors on flexible substrates show little sensitivity to bending deformation and can be embedded in a mask for human respiratory detection. In summary, this study demonstrates the feasibility of applying printing technology for the fabrication of thin-film humidity sensors, and the methodology developed can be further applied to fabricate many other types of nanoparticle-based sensor devices
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|a Journal Article
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1 |
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|a Chiu, Hsien-Lung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Yen-Chi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yesilmen, Mazlum
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Schulz, Florian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ketelsen, Bendix
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Vossmeyer, Tobias
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liao, Ying-Chih
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 35(2019), 9 vom: 05. März, Seite 3256-3264
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|g volume:35
|g year:2019
|g number:9
|g day:05
|g month:03
|g pages:3256-3264
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|u http://dx.doi.org/10.1021/acs.langmuir.8b03433
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