(Invited) Multifunctional Plasma-Enabled Low Dimensional Nanoarchitectures: From Synthesis to Devices

Abstract

In this presentation, we will give an overview on our last advances in the exploitation of plasma and vacuum deposition methods for the nanoengineering of thin films and supported low-dimensional materials. A key step in the development of such nanoarchitectures is the implementation of a soft-template procedure based on the use of single-crystal small-molecule nanowires grown on processable substrates under mild conditions. We will demonstrate the application of vacuum and plasma-assisted deposition techniques to develop complex nanowires (NWs) and nanotubes (NTs) with a core@multishell morphology where each shell adds functionality or multifunctionality to the system. The steps required for the integration of these nanomaterials as supported or in-device applications will be presented. Two final applications will drive the presentation, namely, the development of multisource energy harvesters (and self-powered sensors) and novel approaches for smart and efficient de-icing by acoustic waves covering the topics of the 3DScavengers and SOUNDofICE EU projects. The universal character of vacuum and plasma methods allows for the deposition of an unprecedented variety of possibilities, including, organic (small-molecules, organic nanocomposites, polymeric layers), inorganic (metal and metal oxides), hybrid (hybrid perovskite) materials acting as conducting, semiconducting, dielectric, photo-absorbent, piezoelectric or plasmonic components in a multilayer or radial configuration. We will share the results accomplished during the last years in the field of energy harvesting (solar cells,[1-4] piezoelectric and triboelectric nanogenerators[5-7]), semi-transparent nanoelectrodes,[8] wetting [9], de-icing and anti-icing.[10-11] References Filippin, A., Sanchez-Valencia, J., Borras, A. et al. (2017) Nanoscale, 9:8133-8141.Barranco, A., Borras, A., Sanchez-Valencia J. R. et al. (2020) Adv. Ener. Mater 10:1901524.Castillo, J., Borras, A., Sanchez-Valencia J.R. et al. (2022) Adv. Mater. 34:2107739.Obrero, J., Borras A., Barranco, A. (2022) Adv. Ener. Mater. 12:2200812.Filippin, A. N., Borras, A. et al. (2019) Nano Energy 58:476-483.García-Casas, X., Borras, A. et al. (2022) Nano Energy 91:106673.García-Casas, X. Borras, A. et al. Patent application Self-powered triboelectric transductor device for drops and liquids. EP23382176.8Castillo-Seoane, J., Borras, A. et al. (2021) Nanoscale 13:13882.Montes, L., Borras, A. et al. (2021) Adv. Mater. Interf. 21:2100767.Lopez-Santos, C., Borras, A. et al. (2019) Langmuir 35:16876.Del Moral, J., Montes, L., Borras, A. et al. (2023) Adv. Funct. Mater. 2023, 2209421