Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
| Autor: | Lionel Flandin, David Muñoz-Rojas, Nicolas Charvin, Joao Resende, Daniel Bellet, Dorina T. Papanastasiou, Viet Huong Nguyen, Carmen Jiménez, Abderrahime Sekkat |
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| Přispěvatelé: | Laboratoire des matériaux et du génie physique (LMGP ), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA), Genèse et Usage d'Interfaces Durables pour l'Energie (GUIDE), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI), Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Institut de Chimie du CNRS (INC)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Phenikaa University |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Fabrication Nanowire Bioengineering 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Stress (mechanics) Coating General Materials Science IR imaging Atmospheric-Pressure Spatial Atomic Layer Deposition Electrical and Electronic Engineering Nanocomposite nanocomposite business.industry Mechanical Engineering General Chemistry [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences transparent electrodes Mechanics of Materials Electrode engineering Optoelectronics simulations 0210 nano-technology business Current density Voltage |
| Zdroj: | Nanotechnology Nanotechnology, Institute of Physics, 2021, 32 (44), pp.445702. ⟨10.1088/1361-6528/ac1632⟩ |
| ISSN: | 0957-4484 1361-6528 |
| Popis: | International audience; Silver nanowire (AgNW) networks are among the most promising indium-free, flexible transparent electrodes for energy, lighting and heating devices. However, the lack of stability of such networks is a key factor that limits their industrial application. While applications require homogeneous networks, non-homogeneous AgNW networks are intentionally prepared in the present work to probe the mechanisms leading to failure under electrical stress. We show that induced non-homogeneities have a strong impact both on the spatial distribution of temperature (measured by IR imaging) and the current density throughout the electrode (as deduced from modeling). Regions with higher current density under elevated electrical stress are correlated to the origin of degradation. Furthermore, the influence of a zinc oxide (ZnO) layer on electrical performances of non-homogeneous specimens is studied. Thanks to ZnO coating, the tortuosity of electrical potential lines measured by the one-probe mapping technique is much lower than for bare networks. Additionally, coated network electrical failure occurs at 40% higher voltage compared to bare network, over 18 V, while reaching superior power-induced heating of 360 °C. The results presented here will contribute to the design and fabrication of more robust nanowire networks, particularly for application in transparent heaters. |
| Databáze: | OpenAIRE |
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