POS5-0490
Ambipolar Organic Electrochemical Transistors and Logic Circuits via Vertical Architecture
When and Where
Nov 30, -0001
00:00 - 00:00
Presenter(s)
Kyuyeon Kim (Inha University)
Co-Author(s)
Abstract
Organic electrochemical transistors (OECTs) have attracted significant attention owing to their low-voltage operation, high transconductance, and compatibility with soft and flexible electronic platforms. In contrast to conventional organic complementary circuits that require separate p-type and n-type semiconducting materials, complementary circuits based on a single ambipolar semiconductor can significantly reduce fabrication complexity and cost while improving process integration. However, the realization of practical OECTs and their logic circuits using ambipolar semiconductors remains challenging because of the difficulty in achieving balanced hole and electron injection and transport, as well as well-controlled switching behavior. In this work, we present high-performance OECTs and logic circuits based on a single ambipolar semiconductor employing a vertical device architecture. The vertical structure reduces the channel length to the submicrometer scale, thereby increasing the on-current and transconductance while enabling more balanced ambipolar operation. These results demonstrate that energy-level and device-structure engineering are essential for realizing practical ambipolar devices and provide a promising route toward advanced OECTs and complementary logic circuits.
