Synergistic Effects of Self-Assembled Monolayers in Solution-Processed 6,13-Bis(triisopropylsilylethynyl)Pentacene Transistors

Organic semiconductors are highly interface-sensitive, and therefore chemical functionalization using self-assembled monolayers (SAMs) is often adopted to tailor their properties. This study clarifies the synergistic effects of electrode and dielectric SAMs on the behavior of solution-processed organic field-effect transistors (OFETs). Utilization of a self-consistent device model enables a physically robust treatment of the measured electrical characteristics of the OFETs, thus providing highly reliable materials, interface, morphology, and transport parameters. These parameters are further extended and correlated to build a comprehensive picture on trap energy and injection-transport relationship, finally revealing a set of fundamental insights into chemically modified OFETs.

Automated summary

This study delves into the synergistic effects of electrode and dielectric SAMs on the behavior of solution-processed organic field-effect transistors, providing fundamental insights into chemically modified OFETs. By utilizing a self-consistent device model to robustly treat the measured electrical characteristics of the OFETs, reliable material, interface, morphology, and transport parameters are obtained and correlated to build a comprehensive understanding on trap energy and injection-transport relationship.