December 01, 2005
Organic printable RFID labels
The shift toward RFID is being led by the big retailers; however, suppliers are finding it difficult to comply as silicon chips are an expensive proposition. For RFID tags to replace barcodes they need to be available cheaply and that can only be possible when the technology to utilize printable organic materials is available. Another catch is that the organic materials have to be capable of working in the frequency ranges that vary considerably.
An organic diode that can rectify AC at 50 MHz has been developed by researchers in Belgium. Silicon provides speedier conduction than organic charge carriers. spectrum.ieee.org reports:
Up to now, prototype RFID tags using planar organic transistors for rectification have worked up to frequencies of about 18 kilohertz, reports Klaus Dimmler, president of OrganicID in Colorado Springs, Colo.
Read More: Could Belgian Diode Lead to Printable RFIDs?
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