Title:
SMELL SENSOR AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/236653
Kind Code:
A1
Abstract:
A smell sensor, comprising a sensing device (1). The sensing device (1) comprises an electrode layer (15), a flexible substrate (14), and a sensing layer (13) which are sequentially provided, the flexible substrate (14) and the sensing layer (13) are respectively formed of different flexible polymers, and a potential difference can be generated by an external force; the sensing layer (13) is provided with a plurality of hole sites, the flexible substrate (14) is exposed from the hole sites, and chemical modifiers are provided on the hole sites to form smell sensing units; the chemical modifiers on at least some of the hole sites are different, the chemical modifiers are used to react with gases to make the potential change, and gases having different smells bind to different chemical modifiers for reaction. The difference in electronic capability between the flexible substrate (14) and the sensing layer (13) can produce a power supply, and the smell sensor does not need to use an external power supply and can be used in an environment where there is energy shortage. The plurality of smell sensing units improve the density of recognition sites; thus, more smells can be recognized, and the probabilities of gases in the air binding to the recognition sites are increased.
Inventors:
ZHAN YANG (CN)
DONG WENXIU (CN)
DONG WENXIU (CN)
Application Number:
PCT/CN2021/092963
Publication Date:
November 17, 2022
Filing Date:
May 11, 2021
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
G01N27/00; C23F1/04; C23F4/00; C25D9/00; H02N1/04
Foreign References:
| CN111239233A | 2020-06-05 | |||
| CN108535422A | 2018-09-14 | |||
| US20150220199A1 | 2015-08-06 |
Other References:
HE HAOXUAN, ZHANG MENGYANG, ZHAO TIANMING, ZENG HUI, XING LILI, XUE XINYU: "A self-powered gas sensor based on PDMS/Ppy triboelectric-gas-sensing arrays for the real-time monitoring of automotive exhaust gas at room temperature", SCIENCE CHINA MATERIALS, vol. 62, no. 10, 1 October 2019 (2019-10-01), pages 1433 - 1444, XP055839584, ISSN: 2095-8226, DOI: 10.1007/s40843-019-9445-9
ZHONG TIANYAN, MENGYANG ZHANG, YONGMING FU, YECHAO HAN, HONGYE GUAN, HAOXUAN HE, TIANMING ZHAO, LILI XING, XINYU XUE, YAN ZHANG, : "An artificial triboelectricity-brain-behavior closed loop for intelligent olfactory substitution", NANO ENERGY, vol. 63, 8 July 2019 (2019-07-08), pages 1 - 9, XP055839581, DOI: 10.1016/j.nanoen.2019.103884
ZHONG TIANYAN, MENGYANG ZHANG, YONGMING FU, YECHAO HAN, HONGYE GUAN, HAOXUAN HE, TIANMING ZHAO, LILI XING, XINYU XUE, YAN ZHANG, : "An artificial triboelectricity-brain-behavior closed loop for intelligent olfactory substitution", NANO ENERGY, vol. 63, 8 July 2019 (2019-07-08), pages 1 - 9, XP055839581, DOI: 10.1016/j.nanoen.2019.103884
Attorney, Agent or Firm:
SHENZHEN IPLUS INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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