Applied Physics Letters · 2004 · 183 citations · 18 references
EngineeringChemical EngineeringElectrical EngineeringMicroelectronicsOrganic ChemistrySemiconductor DevicesField-effect TransistorsIntegrated Circuit DesignIntegrated Circuit DevicesOrganic Electronic MaterialsOrganic SemiconductorsTransistor BiasingDigital Logic CircuitsField-effect Transistor BiasingGainInvertersMaximum GainOrganic ElectronicsOrganic Field-effect TransistorsOrganic Thin-film Transistors
We demonstrate a complementary-like inverter comprised of two identical ambipolar field-effect transistors based on the solution processable methanofullerene [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The transistors are capable of operating in both the p- and n-channel regimes depending upon the bias conditions. However, in the p-channel regime transistor operation is severely contact limited. We attribute this to the presence of a large injection barrier for holes at the Au∕PCBM interface. Despite this barrier the inverter operates in both the first and third quadrant of the voltage output versus voltage input plot exhibiting a maximum gain in the order of 20. Since the inverter represents the basic building block of most logic circuits we anticipate that other complementary-like circuits can be realized by this approach.
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Large-scale complementary integrated circuits based on organic transistors
B. K. Crone, A. Dodabalapur, Y.-Y. Lin et al. · Nature · 2000 · 1.3K citations
Engineering, Computer Engineering, Electrical Engineering +14