Single Electron Transistors (SET) substituting MOSFETs to reduce power consumption of an inverter circuit

Instead of MOSFET Single Electron Transistor (SET) can be used as a voltage controlled switch. The current flowing through a SET is the result of electron tunneling through tunnel junctions of its source and drain. So the supply voltage requirement is also very low. As a result, the power consumption across a Single Electron Transistor is ultra-low in comparison to that of a MOSFET. In this research work simulations have been done with PSPICE for an inverter built with both SETs and MOSFETs. Supply voltage requirement for a SET based inverter was 35mV whereas the supply voltage requirement for a CMOS inverter was 3.5V. SET based inverter consumes almost 5 million times less power than CMOS inverter.