Vertical NOR-logic circuits constructed using nanoparticle films on plastic substrates

Abstract

In this study, a NOR-logic circuit is constructed by the vertical stacking of three individual thin-film transistors (TFTs) with the channels of solution-processed chalcogenide nanoparticle (NP) films on a plastic substrate. The NOR-logic circuit consists of two p-type HgTe NP-based TFTs, which act as drivers, and one n-type HgSe NP-based TFT, which plays the role of an active load. The logic operation is observed with a substantial difference in V-out between the logic state of "00" and the other logic states, and the logic swing is similar to 60%. (C) 2014 The Japan Society of Applied Physics