Organic CMOS circuits for RFID applications

Within the past few years several groups have demonstrated first prototypes of organic RFID-tags working at a carrier frequency of 13.56MHz [1–3]. Due to the superior performance of organic p-type semiconductors regarding e.g. mobility, contact behavior and stability under ambient conditions, all of these existing tag concepts were exclusively based on organic p-type semiconductors. A number of organic CMOS circuits so far have been realized using various material combinations deposited either by evaporation or from solution and demonstrating different degrees of circuit complexity [4–6]. None of them demonstrated an organic CMOS transponder. This paper presents an organic CMOS transponder carrying 4 bits of digital information in conjunction with another 4 bits for the protocol.

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