Synthesis, mobility, and conductivity of well-defined regioregular poly(3-hexylthiophene) and diblock copolymers of regioregular poly(3-hexylthiophene)

Geneviève Sauvé; Rui Zhang; Shijun Jia; Tomasz Kowalewski; Richard D. McCullough

doi:10.1117/12.681068

25 August 2006 Synthesis, mobility, and conductivity of well-defined regioregular poly(3-hexylthiophene) and diblock copolymers of regioregular poly(3-hexylthiophene)

Geneviève Sauvé, Rui Zhang, Shijun Jia, Tomasz Kowalewski, Richard D. McCullough

Author Affiliations +

Proceedings Volume 6336, Organic Field-Effect Transistors V; 633614 (2006) https://doi.org/10.1117/12.681068
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Regioregular poly(3-hexylthiophene) (RR-P3HT) has been a benchmark for organic field effect transistors containing a conjugated polymer. Here, we focus on a new class of materials that we have developed: block copolymers of RRP3HT and of a non-conjugated polymer. By varying the physical properties of the non-conjugated segment, it is possible to fine-tune the physical and electrical properties of the copolymer for various device applications. Here, we report the synthesis, UV-Vis, and conductivity of a series of block copolymers of RR-P3HT containing poly(methyl acrylate) (PMA) as the second segment. We also present preliminary results of these polymers in FET devices. We find that despite the presence of the insulating segment, these polymers have relatively high mobilities, especially when the substrate is treated with octyltrichlorosilane. For example, a mobility of 0.03 cm²V^-1s^-1 is reported for the block copolymer P3HT-b-PMA containing 41 mole % PMA, for a film drop-cast from a chloroform solution under ambient conditions. This work demonstrates that using block copolymers is a good approach for improving the material's properties while maintaining a high solid-state order that is critical for good OFET performance.

Citation Download Citation

Geneviève Sauvé, Rui Zhang, Shijun Jia, Tomasz Kowalewski, and Richard D. McCullough "Synthesis, mobility, and conductivity of well-defined regioregular poly(3-hexylthiophene) and diblock copolymers of regioregular poly(3-hexylthiophene)", Proc. SPIE 6336, Organic Field-Effect Transistors V, 633614 (25 August 2006); https://doi.org/10.1117/12.681068

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available