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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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Boosting the Ambipolar Performance of Solution-Processable Polymer Semiconductors via Hybrid Side-Chain Engineering

Cited 38 times inthomson ciCited 33 times inthomson ci
Title
Boosting the Ambipolar Performance of Solution-Processable Polymer Semiconductors via Hybrid Side-Chain Engineering
Author
Lee, JunghoonHan, A-ReumYu, HojeongShin, Tae JooYang, ChangdukOh, Joon Hak
Keywords
Complementary circuits; Cost-effective fabrication; Electron donor acceptors; Electron transporting; Large-area electronics; Operational stability; Polymer semiconductors; Threedimensional (3-d)
Issue Date
201306
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, v.135, no.25, pp.9540 - 9547
Abstract
Ambipolar polymer semiconductors are highly suited for use in flexible, printable, and large-area electronics as they exhibit both n-type (electron-transporting) and p-type (hole-transporting) operations within a single layer. This allows for cost-effective fabrication of complementary circuits with high noise immunity and operational stability. Currently, the performance of ambipolar polymer semiconductors lags behind that of their unipolar counterparts. Here, we report on the side-chain engineering of conjugated, alternating electron donor-acceptor (D-A) polymers using diketopyrrolopyrrole-selenophene copolymers with hybrid siloxane-solubilizing groups (PTDPPSe-Si) to enhance ambipolar performance. The alkyl spacer length of the hybrid side chains was systematically tuned to boost ambipolar performance. The optimized three-dimensional (3-D) charge transport of PTDPPSe-Si with pentyl spacers yielded unprecedentedly high hole and electron mobilities of 8.84 and 4.34 cm2 V-1 s-1, respectively. These results provide guidelines for the molecular design of semiconducting polymers with hybrid side chains.
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DOI
http://dx.doi.org/10.1021/ja403949g
ISSN
0002-7863
Appears in Collections:
ECHE_Journal Papers
MSE_Journal Papers

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