Electrical and humidity sensing properties of K+-nano-mica film

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Title:	Electrical and humidity sensing properties of K+-nano-mica film
Authors:	Su, PG (Su, Pi-Guey) Lin, PH (Lin, Po-Hung)
Contributors:	Dept Chem
Keywords:	Humidity sensor K+-nano-mica Ion Impedance analysis Sensing properties
Date:	2012-01
Issue Date:	2013-02-25 13:28:31 (UTC+8)
Abstract:	An impedance-type humidity sensor was made using K+-nano-mica film. Complex impedance spectra were obtained to analyze the humidity sensing and electrical properties of the humidity sensor. The sensor had a high sensitivity and its sensing-linearity depended on the applied frequency. The temperature dependence between 15 and 35 degrees C was from -0.1%RH/degrees C to -0.67%RH/degrees C at 20-90%RH, respectively. The sensor exhibited a small hysteresis, a fast response time and good long-term stability. The different complex impedance plots obtained at low and high relative humidity indicated that the ions dominate the conductance of the K.-nano-mica film. (C) 2011 Elsevier B.V. All rights reserved.
Relation:	SENSORS AND ACTUATORS B-CHEMICAL 卷: 161 期: 1 頁數: 838-844
Appears in Collections:	[Department of Chemistry & Graduate Institute of Applied Chemistry ] journal articles

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