Liao, HailiangSanviti, MatteoHeeney, Martin2025-11-202025-11-202025-01-21Rimmele M, Sanviti M, Zhou R, Emwas AH, Martín J, Anthopoulos TD, Heeney M. High Performance Organic Mixed Ionic-Electronic Polymeric Conductor with Stability to Autoclave Sterilization. Angew Chem Int Ed Engl. 2025 Jan 21;64(4):e202416288. doi: 10.1002/anie.202416288. Epub 2024 Nov 2. PMID: 39291657.1433-7851https://hdl.handle.net/2183/46498[ Abstract] We present a series of newly developed donor-acceptor (D-A) polymers designed specifically for organic electrochemical transistors (OECTs) synthesized by a straightforward route. All polymers exhibited accumulation mode behavior in OECT devices, and tuning of the donor comonomer resulted in a three-order-of-magnitude increase in transconductance. The best polymer gFBT-g2T, exhibited normalized peak transconductance (gm,norm) of 298±10.4 S cm-1 with a corresponding product of charge-carrier mobility and volumetric capacitance, μC*, of 847 F V-1 cm-1 s-1 and a μ of 5.76 cm2 V-1 s-1, amongst the highest reported to date. Furthermore, gFBT-g2T exhibited exceptional temperature stability, maintaining the outstanding electrochemical performance even after undergoing a standard (autoclave) high pressure steam sterilization procedure. Steam treatment was also found to promote film porosity, with the formation of circular 200-400 nm voids. These results demonstrate the potential of gFBT-g2T in p-type accumulation mode OECTs, and pave the way for the use in implantable bioelectronics for medical applications.engAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/AutoclaveDonor-acceptor polymersHigh temperature stabilityMixed ionic electronic conductorsOrganic electrochemical transistors.journal articleopen accesshttps://doi.org/10.1002/anie.202416288