Proton motion in a polyelectrolyte: A probe for wireless humidity sensors

被引:11
作者
Larsson, Oscar [1 ]
Wang, Xiaodong [1 ]
Berggren, Magnus [1 ]
Crispin, Xavier [1 ]
机构
[1] Linkoping Univ, Dept Sci & Technol, SE-60174 Norrkoping, Sweden
来源
SENSORS AND ACTUATORS B-CHEMICAL | 2010年 / 143卷 / 02期
关键词
Humidity sensor; Polyelectrolyte; Printed electronics; Wireless sensor; Resonance; Packaging; CONDUCTIVITY;
D O I
10.1016/j.snb.2009.09.043
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Low-cost passive wireless electronic sensor labels glued onto packages are highly desirable since they enable monitoring of the status of the packages for instance along the logistic chain or while stored at a shelf. Such additional sensing feature would be of great value for many producers and vendors, active in e.g. the food or construction industries. Here,we explore a novel concept for wireless sensing and readout, in which the humidity sensitive ionic motion in a polyelectrolyte membrane is directly translated into a shift of the resonance frequency of a resonance circuit. Thanks to its simplicity, the wireless sensor device itself can be manufactured entirely using common printing techniques and can be integrated into a low-cost passive electronic sensor label. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:482 / 486
页数:5
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