Electrostatic assembly of ultraviolet-curable cellulose-coated silver nanowires as transparent electrodes for nanogenerator

In this study, an electrostatically assisted dip-coating process was proposed by employing amino-modified zinc-oxide nanoparticles (NH2-ZnONPs) as an assistance layer to attract intrinsically negatively charged silver nanowires (AgNWs), which significantly alleviated the aggregation of AgNWs and improved the deposition efficiency. The uniform AgNW/ZnONP was further capped with an eco-friendly ultraviolet-curable cellulose to provide the film with a good water resistance, strong adhesion, and excellent anti-oxidation. Furthermore, a triboelectric generator was demonstrated using the AgNW-composite electrodes, verifying the applicability of the electrode. The electrostatic coating technique and tailored hydroxy propyl methyl cellulose (HPMC) are potentially applicable to other metal nanowires. (C) 2018 The Japan Society of Applied Physics