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Author

Yang, Changduk
Advanced Tech-Optoelectronic Materials Synthesis Lab (ATOMS)
Research Interests
  • Optoelectronic materials synthesis/organic electronics, functionalization of carbonaceous solids, advanced materials chemistry, macromolecular chemistry

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A Thienoisoindigo-Naphthalene Polymer with Ultrahigh Mobility of 14.4 cm(2)/V.s That Substantially Exceeds Benchmark Values for Amorphous Silicon Semiconductors

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Title
A Thienoisoindigo-Naphthalene Polymer with Ultrahigh Mobility of 14.4 cm(2)/V.s That Substantially Exceeds Benchmark Values for Amorphous Silicon Semiconductors
Author
Kim, GyoungsikKang, Seok-JuDutta, Gitish K.Han, Young-KyuShin, Tae JooNoh, Yong-YoungYang, Changduk
Keywords
Flat panel displays; Mechanical properties; Polymers; Thin film transistors High-k gate dielectrics; Mechanical properties of polymers; Molecular engineering; Plastic electronics; Polymer semiconductors; Polymer-based electronic devices; Solution rheology; Transport characteristics
Issue Date
201407
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.136, no.26, pp.9477 - 9483
Abstract
By considering the qualitative benefits associated with solution rheology and mechanical properties of polymer semiconductors, it is expected that polymer-based electronic devices will soon enter our daily lives as indispensable elements in a myriad of flexible and ultra low-cost flat panel displays. Despite more than a decade of research focused on designing and synthesizing state-of-the-art polymer semiconductors for improving charge transport characteristics, the current mobility values are still not sufficient for many practical applications. The confident mobility in excess of ∼10 cm2/V·s is the most important requirement for enabling the realization of the aforementioned near-future products. We report on an easily attainable donor-acceptor (D-A) polymer semiconductor: poly(thienoisoindigo-alt- naphthalene) (PTIIG-Np). An unprecedented mobility of 14.4 cm 2/V·s, by using PTIIG-Np with a high-k gate dielectric poly(vinylidenefluoride-trifluoroethylene) (P(VDF-TrFE)), is achieved from a simple coating processing, which is of a magnitude that is very difficult to obtain with conventional TFTs by means of molecular engineering. This work, therefore, represents a major step toward truly viable plastic electronics.
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DOI
http://dx.doi.org/10.1021/ja504537v
ISSN
0002-7863
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