Solution-Printed Organic Semiconductor Blends Exhibiting Transport Properties on Par with Single Crystals

Authors

Muhammad R. Niazi, King Abdullah University of Science and Technology, Saudi Arabia
Ruipeng Li, King Abdullah University of Science and Technology, Saudi Arabia
Er Qiang Li, King Abdullah University of Science and Technology, Saudi Arabia
Ahmad R. Kirmani, King Abdullah University of Science and Technology, Saudi Arabia
Maged Abdelsamie, King Abdullah University of Science and Technology, Saudi Arabia
Qingxiao Wang, King Abdullah University of Science and Technology, Saudi Arabia
Wenyang Pan, Cornell University
Marcia M. Payne, University of KentuckyFollow
John E. Anthony, University of KentuckyFollow
Detlef-M. Smilgies, Cornell University
Sigurdur T. Thoroddsen, King Abdullah University of Science and Technology, Saudi Arabia
Emmanuel P. Giannelis, Cornell University
Aram Amassian, King Abdullah University of Science and Technology, Saudi Arabia

Abstract

Solution-printed organic semiconductors have emerged in recent years as promising contenders for roll-to-roll manufacturing of electronic and optoelectronic circuits. The stringent performance requirements for organic thin-film transistors (OTFTs) in terms of carrier mobility, switching speed, turn-on voltage and uniformity over large areas require performance currently achieved by organic single-crystal devices, but these suffer from scale-up challenges. Here we present a new method based on blade coating of a blend of conjugated small molecules and amorphous insulating polymers to produce OTFTs with consistently excellent performance characteristics (carrier mobility as high as 6.7 cm²V⁻¹s⁻¹, low threshold voltages of <1V and low sub threshold swings <0.5Vdec⁻¹). Our findings demonstrate that careful control over phase separation and crystallization can yield solution-printed polycrystalline organic semiconductor films with transport properties and other figures of merit on par with their single-crystal counterparts.

Document Type

Article

Publication Date

11-23-2015

Notes/Citation Information

Published in Nature Communications, v. 6, article 8598, p. 1-10.

© 2015 Macmillan Publishers Limited. All rights reserved.

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Digital Object Identifier (DOI)

http://dx.doi.org/10.1038/ncomms9598

Funding Information

This work was supported by the Office of Competitive Research Funds under the Competitive Research Grant (round 1) and Academic Excellence Alliance (round 3). CHESS was supported by the NSF & NIH/NIGMS via NSF award DMR-1332208. A.A. is grateful to SABIC for the Career Development SABIC Chair.

Repository Citation

Niazi, Muhammad R.; Li, Ruipeng; Li, Er Qiang; Kirmani, Ahmad R.; Abdelsamie, Maged; Wang, Qingxiao; Pan, Wenyang; Payne, Marcia M.; Anthony, John E.; Smilgies, Detlef-M.; Thoroddsen, Sigurdur T.; Giannelis, Emmanuel P.; and Amassian, Aram, "Solution-Printed Organic Semiconductor Blends Exhibiting Transport Properties on Par with Single Crystals" (2015). Chemistry Faculty Publications. 68.
https://uknowledge.uky.edu/chemistry_facpub/68