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http://hdl.handle.net/10397/93422
| Title: | Sliver-nanoparticle enhanced Pva thin-film colorimetric humidity sensor | Authors: | Zhang, Y Xia, O Ho, KH Liang, Z Lei, D Zhang, AP Tam, HY |
Issue Date: | 2019 | Source: | 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII), 23-27 June 2019, Berlin, Germany, p. 1219-1221 | Abstract: | In this paper, a fast-response colorimetric humidity sensor based on silver-nanoparticle (AgNP) enhanced polyvinyl alcohol (PVA) thin-film interferometer is reported. The AgNPs are directly printed on a titanium dioxide (TiO2) capped quartz substrate via precision photoreduction technology. Compared with a single layer of PVA film, this PVA-AgNP-TiO2 structure displays more brilliant and abundant colors. The colorimetric sensor can rapidly respond to humidity change in air, and the measured rise time of response is 87 ms. Such fast-response colorimetric sensors have great potential for many applications, such as breath analysis and smartphone camera-based biochips. | Keywords: | Colorimetric sensor Humidity sensor Silver nanoparticles Thin-film interferometer |
Publisher: | Institute of Electrical and Electronics Engineers | ISBN: | 978-1-5386-8104-6 (Electronic ISBN) 978-1-5386-8105-3 (Print on Demand(PoD) ISBN) |
DOI: | 10.1109/TRANSDUCERS.2019.8808495 | Rights: | © 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The following publication Y. Zhang et al., "Sliver-Nanoparticle Enhanced Pva Thin-Film Colorimetric Humidity Sensor," 2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII), 2019, pp. 1219-1221 is available at https://doi.org/10.1109/TRANSDUCERS.2019.8808495 |
| Appears in Collections: | Journal/Magazine Article |
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| Zhang_Sliver-Nanoparticle_Enhanced_Pva.pdf | Pre-Published version | 1.75 MB | Adobe PDF | View/Open |
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