High Performance Organic Thin-Film Transistors Made Simple Through Molecular Design and Processing

Published

October 17, 2008

Author(s)

Oana Jurchescu, Marina Feric, Behrang H. Hamadani, M. Devin, Sankar Subramanian, Balaji Purushothamanc, John E. Anthony, Thomas Jackson, David J. Gundlach

Abstract

We report on a simple a method of inducing self-isolation of the thin film transistors via manipulation of the chemical interactions between the organic molecules and the surfaces where they are deposited. We use pentafluorobenzenethiol (PFBT) treatment of the contacts and investigate the thin film formation of different types of chemical compounds. In particular, three similar organic molecules: triisopropyl-silylethynyl pentacene (TIPS pentacene), triisopropyl-silylethynyl peri-fluoro-pentacene (TIPS PFP) and triisopropyl-silylethynyl cata-fluoro-pentacene (TIPS CFP), were studied and compared to better understand how the molecular, crystal structure and thin film formation influence the electrical behavior of devices fabricated with them. The molecules exhibit significantly different interactions with the chemically treated substrates. The field-effect mobilities of these devices are directly related to their thin film microstructure.

Proceedings Title

ECS Transactions

Volume

16

Issue

9

Conference Dates

October 12-17, 2008

Conference Location

Honolulu, HI

Conference Title

PRiME 2008 (Joint international meeting: 214th Meeting of ECS The Electrochemical Society and 2008 Fall Meeting of The Electrochemical Society of Japan)

Pub Type

Conferences

Citation

Jurchescu, O. , Feric, M. , Hamadani, B. , Devin, M. , Subramanian, S. , Purushothamanc, B. , Anthony, J. , Jackson, T. and Gundlach, D. (2008), High Performance Organic Thin-Film Transistors Made Simple Through Molecular Design and Processing, ECS Transactions , Honolulu, HI (Accessed October 13, 2025)