Please use this identifier to cite or link to this item:
|標題:||Composite of TiO2 nanowires and Nafion as humidity sensor material||作者:||Wu, R.J.
|關鍵字:||nanowires;Nafion humidity;impedance;thin-films;sensing properties||Project:||Sensors and Actuators B-Chemical||期刊/報告no：:||Sensors and Actuators B-Chemical, Volume 115, Issue 1, Page(s) 198-204.||摘要:||
Homogeneous TiO2 nanowires were fabricated by hydrothermal method. SEM pictures proved the yield of nanowires to be more than 90%. Composite humidity sensing films were made by using TiO2 nanowires, TEOS and Nafion. FTIR absorption spectroscopy was used as a semiquantitative method to get information about the protonation. The sensing films were prepared by a dip-coating method. The composite films coated on a pair of gold electrodes were tested for humidity sensors of resistance type. The measurement was carried out at five fixed humidity points in the range of 12-97% relative humidity, which were controlled by employing five different salt solutions. Resistance changes were about three orders of magnitude. The nanowires-based humidity sensors showed moderate sensitivity, short response and recovery time (< 2 min) at relative humidity less than 76%, and good long-term stability. (c) 2005 Elsevier B.V. All rights reserved.
|Appears in Collections:||期刊論文|
Show full item record
TAIR Related Article
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.