Title :
Enhanced-performance wireless conformal "smart skins" utilizing inkjet-printed carbon-nanostructures
Author :
Taoran Le ; Ziyin Lin ; Wong, C.P. ; Tentzeris, Manos M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
This paper introduces for the first time the integration of a UHF radio frequency identification (RFID) antenna with reduced graphene oxide (rGO), developed using direct-write techniques and utilizing an RFID chip for chemical gas detection. The module is realized by inkjet printing on a low-cost paper-based substrate, and the RFID tag is designed for the North America UHF RFID band. The electrical impedance of the rGO thin film changes in the presence of very small quantities of certain toxic gases, resulting in a variation of the backscattered power level which is easily detected by the RFID reader to realize reliable wireless toxic gas sensing. The inkjet printed RFID tag demonstrated a change in backscattered power of 9.18% upon exposure of 40 ppm NO2 for 5 minutes.
Keywords :
electric impedance; gas sensors; ink jet printing; radiofrequency identification; thin films; North America UHF RFID band; RFID antenna; RFID chip; RFID reader; RFID tag; UHF radio frequency identification; backscattered power level; chemical gas detection; direct-write techniques; electrical impedance; enhanced-performance wireless conformal smart skins; inkjet printed RFID tag; inkjet printing; inkjet-printed carbon-nanostructures; low-cost paper-based substrate; rGO thin film; reduced graphene oxide; toxic gases; wireless toxic gas sensing; Antennas; Gas detectors; Graphene; Impedance; Materials; Radiofrequency identification; Gas sensor; T-match; UHF RFID; graphene; inkjet printing; wireless;
Conference_Titel :
Electronic Components and Technology Conference (ECTC), 2014 IEEE 64th
Conference_Location :
Orlando, FL
DOI :
10.1109/ECTC.2014.6897372
