Chinese Journal of Liquid Crystals and Displays, Volume. 40, Issue 8, 1115(2025)

Siloxane-side-chain-induced vertical phase separation in polymer blends for stretchable organic transistors

Runfang JIANG and Longzhen QIU*
Author Affiliations
  • Anhui Industrial Innovation Research Institute of Advanced Optoelectronic Materials and Systems, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronic Engineering, Hefei University of Technology, Hefei 230009, China
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    Figures & Tables(5)
    (a) Molecular formula of DPP-4Si; (b) Molecular formula of SEBS; (c) Transfer characteristic curves of OFET in contact with dielectric layer on the upper surface of DPP-4Si/SEBS blend films with different ratios; (d) Transfer characteristic curves of OFET in contact with dielectric layer on the lower surface of DPP-4Si/SEBS blend films with different ratios.
    (a) Surface energy of upper and lower surfaces; (b) Schematic diagram of upward surface migration of DPP-4Si.
    Phase diagram of the surface of films with different blending ratios. (a) Pure SEBS; (b) 1∶9; (c) 3∶7; (d) 5∶5; (e) 7∶3; (f) 10∶0 (Pure DPP-4Si).
    (a) Atomic force microscopy images of pure DPP-4Si and a DPP-4Si/SEBS blend ratio of 5∶5 under different strains; (b) Transfer characteristic curves of the stretching perpendicular to the channel direction of the film with a DPP-4Si/SEBS blending ratio of 5∶5; (c) Transfer characteristic curves of a film with a DPP-4Si/SEBS blending ratio of 5∶5 stretched parallel to the channel direction.
    (a) Schematic diagram of the structure of a fully stretchable OFET; (b) Transfer characteristic curve of fully stretchable OFET after 100% strain; (c) Variation of maximum current of fully stretchable OFET after different strains.
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    Runfang JIANG, Longzhen QIU. Siloxane-side-chain-induced vertical phase separation in polymer blends for stretchable organic transistors[J]. Chinese Journal of Liquid Crystals and Displays, 2025, 40(8): 1115

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    Paper Information

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    Received: Jun. 4, 2025

    Accepted: --

    Published Online: Sep. 25, 2025

    The Author Email: Longzhen QIU (lzhqiu@hfut.edu.cn)

    DOI:10.37188/CJLCD.2025-0112

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