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

SENSORS AND ACTUATORS B-CHEMICAL

卷:143

Article

Larsson, Oscar¹  Wang, Xiaodong¹  Berggren, Magnus¹  Crispin, Xavier¹ 

[1] Linkoping Univ, Dept Sci & Technol, SE-60174 Norrkoping, Sweden

关键词: Humidity sensor;    Polyelectrolyte;    Printed electronics;    Wireless sensor;    Resonance;    Packaging;   

DOI  :  10.1016/j.snb.2009.09.043

来源: Elsevier

【 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.

【 授权许可】

Free