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
Conventional conjugated polymers face the critical challenge of achieving simultaneous optimization of electrical and mechanical properties. This study focuses on siloxane-side-chain-functionalized diketopyrrolopyrrole (DPP)-based conjugated polymer (DPP-4Si) blended with hydrogenated styrene-butadiene block copolymer (SEBS). Through precise control of film preparation and microphase separation structures, we developed high-performance elastic semiconductor films with a maximum mobility of 1.08 cm2·V-1·s-1. Fully stretchable transistors fabricated using the optimal blend ratio demonstrated remarkable electromechanical stability, maintaining over 72% current retention even under 100% tensile strain, showcasing exceptional stretchability.
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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)