Hybrid Nanowire Ion-to-Electron Transducers for Integrated Bioelectronic Circuitry
American Chemical Society
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Carrad, D., Mostert, A., Ullah, A., Burke, A., Joyce, H., Tan, H., Jagadish, C., et al. (2017). Hybrid Nanowire Ion-to-Electron Transducers for Integrated Bioelectronic Circuitry. Nano Letters, 17 (2), 827-833. https://doi.org/10.1021/acs.nanolett.6b04075
A key task in the emerging field of bioelectronics is the transduction between ionic/protonic and electronic signals at high fidelity. This is a considerable challenge since the two carrier types exhibit intrinsically different physics and are best supported by very different materials typeselectronic signals in inorganic semiconductors and ionic/protonic signals in organic or bio-organic polymers, gels, or electrolytes. Here we demonstrate a new class of organic−inorganic transducing interface featuring semiconducting nanowires electrostatically gated using a solid proton-transporting hygroscopic polymer. This model platform allows us to study the basic transducing mechanisms as well as deliver high fidelity signal conversion by tapping into and drawing together the best candidates from traditionally disparate realms of electronic materials research. By combining complementary $n$- and $p$-type transducers we demonstrate functional logic with significant potential for scaling toward high-density integrated bioelectronic circuitry.
III−V nanowires, bioelectronics, hybrid organic/inorganic electronics, proton-to-electron transduction
This work was funded by the Australian Research Council (ARC), the University of New South Wales, the University of Queensland, Danish National Research Foundation and the Innovation Fund. A.P.M. acknowledges an ARC Future Fellowship (FT0990285) and DJC acknowledges Australian Nanotechnology Network Short Term Visit support. P.M. is an ARC Discovery Outstanding Research Award Fellow and the work at UQ was funded under the ARC Discovery Program (DP140103653). The Centre for Organic Photonics and Electronics is a strategic initiative of the University of Queensland. We thank Helen Rutlidge for conducting the inductively coupled plasma mass spectrometry measurements. This work was performed in part using the NSW and ACT nodes of the Australian National Fabrication Facility (ANFF) and the Mark Wainwright Analytical Centre at UNSW.
External DOI: https://doi.org/10.1021/acs.nanolett.6b04075
This record's URL: https://www.repository.cam.ac.uk/handle/1810/263251