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
Fig. 1. (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.
Fig. 2. (a) Surface energy of upper and lower surfaces; (b) Schematic diagram of upward surface migration of DPP-4Si.
Fig. 3. 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).
Fig. 4. (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.
Fig. 5. (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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Received: Jun. 4, 2025
Accepted: --
Published Online: Sep. 25, 2025
The Author Email: Longzhen QIU (lzhqiu@hfut.edu.cn)