Issue 39, 2023

A temperature dependent power-law drain current model for coplanar OFETs

Abstract

We present a drain current model for coplanar organic field-effect transistors (OFETs) considering temperature dependent power-law mobility and contact resistance. By solving a microscopic two-dimensional equivalent circuit model, we demonstrate that the power-law dependence of mobility on the gate voltage leads to the asymptotic power-law dependence of the contact resistance. Furthermore, we validated the model by measuring the transfer characteristics of pentacene-based coplanar OFETs in a wide temperature range between 293 K and 373 K. We study the temperature dependence of the characteristic temperature on the power-law exponent and the on-state resistance. We showed that the characteristic temperature is independent of the temperature and the on-state resistance follows an inverse Arrhenius-type law.

Graphical abstract: A temperature dependent power-law drain current model for coplanar OFETs

Article information

Article type
Paper
Submitted
21 jul 2023
Accepted
07 sep 2023
First published
07 sep 2023

J. Mater. Chem. C, 2023,11, 13579-13585

A temperature dependent power-law drain current model for coplanar OFETs

J. Park, Y. Lee, G. Horowitz, S. Jung and Y. Bonnassieux, J. Mater. Chem. C, 2023, 11, 13579 DOI: 10.1039/D3TC02576D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements