Humidity sensitive properties of paracetamol. (11th September 2019)

• Record Type: Journal Article
• Authors: Wang, R J; Zhu, G B; Wang, C C
• Is Part Of: Materials research express. Volume 6:Number 10(2019)
• Publication Date: 2019-09-11
• Subjects: paracetamol -- humidity sensor -- dielectric measurements; Materials science -- Research -- Periodicals; Materials science -- Periodicals; 620.11
• DOI: 10.1088/2053-1591/ab403b
• Languages: English
• ISSNs: 2053-1591

Abstract

Abstract: A common coldrex, paracetamol, was used as humidity sensing material. The capacitance-type humidity sensor was fabricated by aerosol deposition method. The humidity sensitive properties were investigated through dielectric measurements. Our results reveal that the sensor has exciting performances in high relative humidity. Both −OH and −NH groups have contributions to water absorption. The −OH groups lead to a water-containing surface layer giving rise to pronounced Maxwell-Wagner response, which in turn, yields the humidity response that can be easily adjusted by an external electric field. This work indicates that the paracetamol is a promising humidity sensing material.