RFID-enabled ultrasensitive wireless sensors utilizing inkjet-printed antennas and carbon nanotubes for gas detection applications

This paper presents, for the first time, the integration of conformal paper-based RFID's with a Single Walled Carbon Nanotube (SW-CNT) composite for the development of a chipless RFID-enabled wireless sensor node for toxic gas detection and breathing-gas-content estimation. The electrical performance of the inkjet-printed SWCNT-based ultrasensitive sensor is reported up to 1GHz. The whole module is realized by inkjet-printing on a low-cost “green” paper-based substrate designed to operate in the European UHF RFID band. The electrical conductivity of the SWCNT film changes in the presence of ultra-small quantities of gases like ammonia and nitrogen dioxide, resulting in the variation of the backscattered power level which can be easily detected by the RFID reader to realize reliable early-warning toxic gas detection or breathing monitoring with potentially profound effects on ubiquitous low-cost “green” quality-of-life applications

[1]  Li Yang,et al.  RFID Tag and RF Structures on a Paper Substrate Using Inkjet-Printing Technology , 2007, IEEE Transactions on Microwave Theory and Techniques.

[2]  Joondong Kim,et al.  Inkjet printing of single-walled carbon nanotubes and electrical characterization of the line pattern , 2008, Nanotechnology.

[3]  N. Abe,et al.  Toward construction of a mobile system with long-range RFID sensors , 2004, IEEE Conference on Cybernetics and Intelligent Systems, 2004..

[4]  M. Dragoman,et al.  Writing simple RF electronic devices on paper with carbon nanotube ink , 2009, Nanotechnology.

[5]  Craig A. Grimes,et al.  A wireless, passive carbon nanotube-based gas sensor , 2002 .

[6]  Jose Maria Kenny,et al.  Carbon nanotubes as new materials for gas sensing applications , 2004 .

[7]  P.V. Nikitin,et al.  Performance limitations of passive UHF RFID systems , 2006, 2006 IEEE Antennas and Propagation Society International Symposium.

[8]  Joondong Kim,et al.  Fabrication of carbon nanotube sensor device by inkjet printing , 2008, 2008 3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems.