Perspective Chapter: Charge Transport in Organic Semiconductors – Fundamentals and Improvement Methods

Understanding the movement of charge carriers in organic semiconductors is essential for optimizing the performance of organic electronic devices. This chapter provides a comprehensive overview of charge transport in organic semiconductors, explaining the underlying mechanisms and discussing various transport models employed to describe mobility—the speed at which charge carriers move in response to an electric field. Furthermore, this chapter delves into the diverse methods employed to improve charge carrier mobility in organic semiconductors, such as blending the organic semiconductor with high-mobility two-dimensional material and interface engineering. Hence, this chapter presents an overview of the theoretical aspects of charge transport and various strategies for improving mobility, offering tools and insights that can contribute to the future development of organic electronic devices with enhanced performance and functionality.