Organic Heterostructure Field-Effect Transistors

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Abstract
Organic field-effect transistors have been developed that function as either n-channel or p-channel devices, depending on the gate bias. The two active materials are α-hexathienylene (α-6T) and C 60 . The characteristics of these devices depend mainly on the molecular orbital energy levels and transport properties of α-6T and C 60 . The observed effects are not unique to the two materials chosen and can be quite universal provided certain conditions are met. The device can be used as a building block to form low-cost, low-power complementary integrated circuits.