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Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling

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 network...

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Main Authors: Dorina T Papanastasiou1, Nicolas Charvin, Joao Resende, Viet Huong Nguyen, Abderrahime Sekkat, David Muñoz-Rojas, Carmen Jiménez, Lionel Flandin, Daniel Bellet
Format: Bài trích
Language:eng
Published: Nanotechnology 2021
Online Access:https://iopscience.iop.org/article/10.1088/1361-6528/ac1632
https://dlib.phenikaa-uni.edu.vn/handle/PNK/2849
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spelling oai:localhost:PNK-28492022-08-17T05:54:48Z Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling Dorina T Papanastasiou1 Nicolas Charvin Joao Resende Viet Huong Nguyen Abderrahime Sekkat David Muñoz-Rojas Carmen Jiménez Lionel Flandin Daniel Bellet 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. 2021-09-14T07:14:53Z 2021-09-14T07:14:53Z 2021 Bài trích https://iopscience.iop.org/article/10.1088/1361-6528/ac1632 https://dlib.phenikaa-uni.edu.vn/handle/PNK/2849 eng Nanotechnology
institution Digital Phenikaa
collection Digital Phenikaa
language eng
description 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.
format Bài trích
author Dorina T Papanastasiou1
Nicolas Charvin
Joao Resende
Viet Huong Nguyen
Abderrahime Sekkat
David Muñoz-Rojas
Carmen Jiménez
Lionel Flandin
Daniel Bellet
spellingShingle Dorina T Papanastasiou1
Nicolas Charvin
Joao Resende
Viet Huong Nguyen
Abderrahime Sekkat
David Muñoz-Rojas
Carmen Jiménez
Lionel Flandin
Daniel Bellet
Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
author_facet Dorina T Papanastasiou1
Nicolas Charvin
Joao Resende
Viet Huong Nguyen
Abderrahime Sekkat
David Muñoz-Rojas
Carmen Jiménez
Lionel Flandin
Daniel Bellet
author_sort Dorina T Papanastasiou1
title Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
title_short Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
title_full Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
title_fullStr Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
title_full_unstemmed Effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
title_sort effects of non-homogeneity and oxide coating on silver nanowire networks under electrical stress: comparison between experiment and modeling
publisher Nanotechnology
publishDate 2021
url https://iopscience.iop.org/article/10.1088/1361-6528/ac1632
https://dlib.phenikaa-uni.edu.vn/handle/PNK/2849
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score 8.891145

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