@article{14ee509ca3bc4ac88d11fc50ca31a1ff,
title = "A Semiconducting Two-Dimensional Polymer as an Organic Electrochemical Transistor Active Layer",
abstract = "Organic electrochemical transistors (OECTs) are devices with broad potential in bioelectronic sensing, circuits, and neuromorphic hardware. Their unique properties arise from the use of organic mixed ionic/electronic conductors (OMIECs) as the active channel. Typical OMIECs are linear polymers, where defined and controlled microstructure/morphology, and reliable characterization of transport and charging can be elusive. Semiconducting two-dimensional polymers (2DPs) present a new avenue in OMIEC materials development, enabling electronic transport along with precise control of well-defined channels ideal for ion transport/intercalation. To this end, a recently reported 2DP, TIIP, is synthesized and patterned at 10 µm resolution as the channel of a transistor. The TIIP films demonstrate textured microstructure and show semiconducting properties with accessible oxidation states. Operating in an aqueous electrolyte, the 2DP-OECT exhibits a device-scale hole mobility of 0.05 cm2 V–1 s–1 and a µC* figure of merit of 1.75 F cm–1 V–1 s–1. 2DP OMIECs thus offer new synthetic degrees of freedom to control OECT performance and may enable additional opportunities such as ion selectivity or improved stability through reduced morphological modulation during device operation.",
keywords = "2D polymers, covalent organic frameworks, organic electrochemical transistors, thin-film transistors",
author = "Rashid, {Reem B.} and Evans, {Austin M.} and Hall, {Lyndon A.} and Dasari, {Raghunath R.} and Roesner, {Emily K.} and Marder, {Seth R.} and D'Allesandro, {Deanna M.} and Dichtel, {William R.} and Jonathan Rivnay",
note = "Funding Information: R.B.R., A.M.E. contributed equally to this work. J.R. and R.B.R gratefully acknowledge support from the Alfred P. Sloan Foundation (FG‐2019‐12046). W.R.D. and S.R.M. gratefully acknowledge support by the United States Army Research Office for a Multidisciplinary University Research Initiative (MURI) award (W911NF‐15‐1‐0447). The authors thank X. Ji (Northwestern) for fruitful discussion and support on figure composition. This work utilized the Northwestern University Micro/Nano Fabrication Facility (NUFAB), which is partially supported by Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS‐1542205), the Materials Research Science and Engineering Center (DMR‐1720139), the State of Illinois, and Northwestern University. This work made use of the Keck‐II facilities of Northwestern University's NU Center, which had received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS‐1542205); the MRSEC program (NSF DMR‐1720139) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. A.M.E. is supported by the National Science Foundation Graduate Research Fellowship (DGE‐1324585). This research used resources of the Advanced Photon Source (Sectors 8) a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE‐AC02‐ 06CH11357. The authors acknowledge Gatan Inc., Pleasanton, CA, USA, for the use of the K3‐IS camera installed at the EPIC facility of Northwestern University's NUANCE Center. Research reported in this publication was supported in part by instrumentation provided by the Office of The Director, National Institutes of Health of the National Institutes of Health under Award Number S10OD026871. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. This work made use of the EPIC facility of Northwestern University's NUANCE Center, which has received support from the SHyNE Resource (NSF ECCS‐2025633), the IIN, and Northwestern's MRSEC program (NSF DMR‐1720139). ANCE Funding Information: R.B.R., A.M.E. contributed equally to this work. J.R. and R.B.R gratefully acknowledge support from the Alfred P. Sloan Foundation (FG-2019-12046). W.R.D. and S.R.M. gratefully acknowledge support by the United States Army Research Office for a Multidisciplinary University Research Initiative (MURI) award (W911NF-15-1-0447). The authors thank X. Ji (Northwestern) for fruitful discussion and support on figure composition. This work utilized the Northwestern University Micro/Nano Fabrication Facility (NUFAB), which is partially supported by Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205), the Materials Research Science and Engineering Center (DMR-1720139), the State of Illinois, and Northwestern University. This work made use of the Keck-II facilities of Northwestern University's NUANCE Center, which had received support from the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF ECCS-1542205); the MRSEC program (NSF DMR-1720139) at the Materials Research Center; the International Institute for Nanotechnology (IIN); the Keck Foundation; and the State of Illinois, through the IIN. A.M.E. is supported by the National Science Foundation Graduate Research Fellowship (DGE-1324585). This research used resources of the Advanced Photon Source (Sectors 8) a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02- 06CH11357. The authors acknowledge Gatan Inc., Pleasanton, CA, USA, for the use of the K3-IS camera installed at the EPIC facility of Northwestern University's NUANCE Center. Research reported in this publication was supported in part by instrumentation provided by the Office of The Director, National Institutes of Health of the National Institutes of Health under Award Number S10OD026871. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. This work made use of the EPIC facility of Northwestern University's NUANCE Center, which has received support from the SHyNE Resource (NSF ECCS-2025633), the IIN, and Northwestern's MRSEC program (NSF DMR-1720139). Publisher Copyright: {\textcopyright} 2022 The Authors. Advanced Materials published by Wiley-VCH GmbH.",
year = "2022",
month = may,
day = "26",
doi = "10.1002/adma.202110703",
language = "English (US)",
volume = "34",
journal = "Advanced Materials",
issn = "0935-9648",
publisher = "Wiley-VCH Verlag",
number = "21",
}