Wrinkled TiNAgNW Nanocomposites for High-Performance Flexible Electrodes on TEMPO-Oxidized Nanocellulose

• Published in: Nanomaterials (Basel, Switzerland) Switzerland), 2024-07, Vol.14 (14), p.1178
• Main Authors: Gence, Loïk, Quero, Franck, Escalona, Miguel, Wheatley, Robert, Seifert, Birger, Diaz-Droguett, Donovan, Retamal, María José, Wallentowitz, Sascha, Volkmann, Ulrich Georg, Bhuyan, Heman
• Format: Article
• Language: English
• Subjects: Air temperature; Antimicrobial agents; Atmospheric corrosion; bendable; Bending stresses; Cellulose; Coatings; Composite materials; Electrodes; Lasers; Low temperature; Medical equipment; Morphology; nanocellulose; nanocomposite; Nanocomposites; Nanotechnology; Nanowires; Organic chemicals; Plasma; Pulsed laser deposition; Pulsed lasers; Radiation; Scanning electron microscopy; Silver; Spectrum analysis; Substrates; Titanium nitride
• ISSN: 2079-4991; 2079-4991
• DOI: 10.3390/nano14141178

In this study, we present a novel method for fabricating semi-transparent electrodes by combining silver nanowires (AgNW) with titanium nitride (TiN) layers, resulting in conductive nanocomposite coatings with exceptional electromechanical properties. These nanocomposites were deposited on cellulose nanopaper (CNP) using a plasma-enhanced pulsed laser deposition (PE-PLD) technique at low temperatures (below 200 °C). Repetitive bending tests demonstrate that incorporating AgNW into TiN coatings significantly enhances the microstructure, increasing the electrode's electromechanical robustness by up to four orders of magnitude compared to commercial PET/ITO substrates. Furthermore, the optical and electrical conductivities can be optimized by adjusting the AgNW network density and TiN synthesis temperature. Our results also indicate that the nanocomposite electrodes exhibit improved stability in air and superior adhesion compared to bare AgNW coatings.