Hybrid complementary logic circuits of one-dimensional nanomaterials with adjustment of operation voltage

A new layout of predictable and controllable complementary logic circuits based on hybrid nanodevices comprising p-channel single-walled carbon nanotube (SWNT) and n-channel zinc oxide (ZnO) nanowire transistors providing a hybrid approach to combine advantageous characteristic functions for the modulation of the current and operating voltage in transistors through proton radiation generated charge, was studied. A suspension of SWNTs obtained through an arc discharge process in 1,2, dichlorobenzene (o-DCB) was prepared by a combination of sonication and centrifugation. 1 mg of SWNTs in 10 mL of o-DCB was sonicated for 5 mm and the SWNT suspension was then centrifuged for 200 mm at 16000 g followed by ultra centrifugation for 2 h at 325 000 g. The current-VTCs of transistors and logic circuits were measured using a semiconductor parameter analyzer. It was possible to achieve high performance logic circuits by selectively controlling the threshold voltages of transistors through the population of proton radiation generated charges in the dielectric layer.