An RF-ID circuit comprises a high -speed diode which can operate at frequencies of 13.54 MHz with a high rectification ratio. To lower the cost, it would be desirable to form the diode from printable organic and hybrid materials. However, the performance of such diodes has not been competitive with inorganic semiconductor diodes due to low carrier mobility, speed and carrier density. The Katz group has developed a series of diodes which can provide high maximum current density of 160 A cm-2 and which maintain maximum AC rectification up to 20 MHz. While the focus is on the application of organic semiconductor electronics to RFID tags, many other kinds of circuits can benefit from these new diodes.
