Progress in organic single-crystal field-effect transistors

TL;DR

This paper reviews recent progress in organic single-crystal field-effect transistors, highlighting advances in understanding their microscopic physics, intrinsic transport properties, and record-high carrier mobilities achieved through high-purity crystals.

Contribution

It provides a comprehensive overview of recent developments in organic single-crystal transistors, emphasizing new insights into their physical mechanisms and exceptional mobility values.

Findings

High carrier mobility in organic single crystals

Enhanced understanding of microscopic transport mechanisms

Potential for future device performance improvements

Abstract

Research on organic thin-film transistors tends to focus on improvements in device performance, but very little is understood about the ultimate limits of these devices, the microscopic physical mechanisms responsible for their limitations, and, more generally, the intrinsic transport properties of organic semiconductors. These topics are now being investigated through the study of transport in organic transistors realized using molecular single crystals of unprecedented chemical purity and structural quality. These studies are elucidating detailed microscopic aspects of the physics of organic semiconductors and corresponding devices and have also led to unforeseen high values for carrier mobility in these materials. Here, we discuss developments in this area and present a brief outlook on future goals that have now come into experimental reach.