Reconfigurable Complementary Logic Circuits with Ambipolar Organic Transistors

TLDR

Ambipolar organic electronics promise simple, low-cost fabrication of complementary logic circuits on large-area, flexible substrates, yet experimental demonstrations have been limited to inverters and polarity control often compromises performance. The study aims to demonstrate high-performance non‑planar ambipolar organic transistors with electrically controlled polarity that surpass state‑of‑the‑art split‑gate devices. The authors fabricated non‑planar ambipolar organic transistors featuring electrically tunable polarity, achieving performance improvements by several orders of magnitude over split‑gate counterparts. They experimentally realized electrically reconfigurable complementary logic gates using these transistors, demonstrating a new pathway for ambipolar organic complementary electronics.

Abstract

Abstract Ambipolar organic electronics offer great potential for simple and low-cost fabrication of complementary logic circuits on large-area and mechanically flexible substrates. Ambipolar transistors are ideal candidates for the simple and low-cost development of complementary logic circuits since they can operate as n-type and p-type transistors. Nevertheless, the experimental demonstration of ambipolar organic complementary circuits is limited to inverters. The control of the transistor polarity is crucial for proper circuit operation. Novel gating techniques enable to control the transistor polarity but result in dramatically reduced performances. Here we show high-performance non-planar ambipolar organic transistors with electrical control of the polarity and orders of magnitude higher performances with respect to state-of-art split-gate ambipolar transistors. Electrically reconfigurable complementary logic gates based on ambipolar organic transistors are experimentally demonstrated, thus opening up new opportunities for ambipolar organic complementary electronics.