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Sensors 2017, 17(3), 534;

Fully Printed Flexible Single-Chip RFID Tag with Light Detection Capabilities

Institute for Nanoelectronics, Technical University of Munich, 80333 Munich, Germany
Faculty of Science and Technology, Free University of Bolzano, 39100 Bolzano-Bozen, Italy
Author to whom correspondence should be addressed.
Academic Editors: Hyun-Joong Chung and Tae-il Kim
Received: 23 January 2017 / Revised: 5 March 2017 / Accepted: 6 March 2017 / Published: 8 March 2017
(This article belongs to the Special Issue Flexible Electronics and Sensors)
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A printed passive radiofrequency identification (RFID) tag in the ultra-high frequency band for light and temperature monitoring is presented. The whole tag has been manufactured by printing techniques on a flexible substrate. Antenna and interconnects are realized with silver nanoparticles via inkjet printing. A sprayed photodetector performs the light monitoring, whereas temperature measurement comes from an in-built sensor in the silicon RFID chip. One of the advantages of this system is the digital read-out and transmission of the sensors information on the RFID tag that ensures reliability. Furthermore, the use of printing techniques allows large-scale manufacturing and the direct fabrication of the tag on the desired surface. This work proves for the first time the feasibility of the embedment of large-scale organic photodetectors onto inkjet printed RFID tags. Here, we solve the problem of integration of different manufacturing techniques to develop an optimal final sensor system. View Full-Text
Keywords: flexible substrate; inkjet printing; organic photodetector; printed electronics; spray deposition; OPD flexible substrate; inkjet printing; organic photodetector; printed electronics; spray deposition; OPD

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Falco, A.; Salmerón, J.F.; Loghin, F.C.; Lugli, P.; Rivadeneyra, A. Fully Printed Flexible Single-Chip RFID Tag with Light Detection Capabilities. Sensors 2017, 17, 534.

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