Study of brush-painted ag nanowire network on flexible invar metal substrate for curved thin film heater

Yong Jun Kim; Gyewon Kim; Han Ki Kim

doi:10.3390/met9101073

Study of brush-painted ag nanowire network on flexible invar metal substrate for curved thin film heater

Yong Jun Kim
, Gyewon Kim
, Han Ki Kim

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

The objective of this study was to determine the characteristics of brush-painted Ag nanowires (NW) network electrode on a SiO₂ coated invar substrate for high performance curved thin film heaters (TFHs). To avoid influence of a conductive invar metal foil substrate, thin SiO₂ film was deposited on an invar substrate as an insulating layer. We measured sheet resistance, optical reflectance, and surface morphology of Ag NWs/SiO₂/invar as a function of the number of brush painting from one to four times. Optimized brush-painted Ag NWs network on a SiO₂/invar substrate showed a low sheet resistance 38.5₂ Ω/square, which was acceptable for fabrication of curved TFHs. Based on a lab-made bending and fatigue tester, critical radius of the optimized Ag NWs/SiO₂/invar electrode was found to be 6 mm. It demonstrated superior repeated flexibility of an Ag NW/SiO₂/invar substrate. Furthermore, we demonstrated the feasibility of using a brush-painted Ag NW/SiO₂/invar substrate as an electrode for curved TFHs. These curved TFHs fabricated on an Ag NW/SiO₂/invar substrate showed rapid heating properties and high saturation temperature even at low applied voltage due to low resistivity of Ag NW network. This indicates that a brush-painted Ag NW/SiO₂/invar substrate is a promising flexible electrode and substrate for high performance curved TFHs.

Original language	English
Article number	1073
Journal	Metals
Volume	9
Issue number	10
DOIs	https://doi.org/10.3390/met9101073
State	Published - Oct 2019

Keywords

Brush-painted Ag nanowire
Electrode
Flexibility
Invar metal substrate
Saturation temperature
Thin film heater

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10.3390/met9101073

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title = "Study of brush-painted ag nanowire network on flexible invar metal substrate for curved thin film heater",

abstract = "The objective of this study was to determine the characteristics of brush-painted Ag nanowires (NW) network electrode on a SiO2 coated invar substrate for high performance curved thin film heaters (TFHs). To avoid influence of a conductive invar metal foil substrate, thin SiO2 film was deposited on an invar substrate as an insulating layer. We measured sheet resistance, optical reflectance, and surface morphology of Ag NWs/SiO2/invar as a function of the number of brush painting from one to four times. Optimized brush-painted Ag NWs network on a SiO2/invar substrate showed a low sheet resistance 38.52 Ω/square, which was acceptable for fabrication of curved TFHs. Based on a lab-made bending and fatigue tester, critical radius of the optimized Ag NWs/SiO2/invar electrode was found to be 6 mm. It demonstrated superior repeated flexibility of an Ag NW/SiO2/invar substrate. Furthermore, we demonstrated the feasibility of using a brush-painted Ag NW/SiO2/invar substrate as an electrode for curved TFHs. These curved TFHs fabricated on an Ag NW/SiO2/invar substrate showed rapid heating properties and high saturation temperature even at low applied voltage due to low resistivity of Ag NW network. This indicates that a brush-painted Ag NW/SiO2/invar substrate is a promising flexible electrode and substrate for high performance curved TFHs.",

keywords = "Brush-painted Ag nanowire, Electrode, Flexibility, Invar metal substrate, Saturation temperature, Thin film heater",

author = "Kim, \{Yong Jun\} and Gyewon Kim and Kim, \{Han Ki\}",

note = "Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2019",

month = oct,

doi = "10.3390/met9101073",

language = "English",

volume = "9",

journal = "Metals",

issn = "2075-4701",

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AU - Kim, Yong Jun

AU - Kim, Gyewon

AU - Kim, Han Ki

PY - 2019/10

Y1 - 2019/10

N2 - The objective of this study was to determine the characteristics of brush-painted Ag nanowires (NW) network electrode on a SiO2 coated invar substrate for high performance curved thin film heaters (TFHs). To avoid influence of a conductive invar metal foil substrate, thin SiO2 film was deposited on an invar substrate as an insulating layer. We measured sheet resistance, optical reflectance, and surface morphology of Ag NWs/SiO2/invar as a function of the number of brush painting from one to four times. Optimized brush-painted Ag NWs network on a SiO2/invar substrate showed a low sheet resistance 38.52 Ω/square, which was acceptable for fabrication of curved TFHs. Based on a lab-made bending and fatigue tester, critical radius of the optimized Ag NWs/SiO2/invar electrode was found to be 6 mm. It demonstrated superior repeated flexibility of an Ag NW/SiO2/invar substrate. Furthermore, we demonstrated the feasibility of using a brush-painted Ag NW/SiO2/invar substrate as an electrode for curved TFHs. These curved TFHs fabricated on an Ag NW/SiO2/invar substrate showed rapid heating properties and high saturation temperature even at low applied voltage due to low resistivity of Ag NW network. This indicates that a brush-painted Ag NW/SiO2/invar substrate is a promising flexible electrode and substrate for high performance curved TFHs.

AB - The objective of this study was to determine the characteristics of brush-painted Ag nanowires (NW) network electrode on a SiO2 coated invar substrate for high performance curved thin film heaters (TFHs). To avoid influence of a conductive invar metal foil substrate, thin SiO2 film was deposited on an invar substrate as an insulating layer. We measured sheet resistance, optical reflectance, and surface morphology of Ag NWs/SiO2/invar as a function of the number of brush painting from one to four times. Optimized brush-painted Ag NWs network on a SiO2/invar substrate showed a low sheet resistance 38.52 Ω/square, which was acceptable for fabrication of curved TFHs. Based on a lab-made bending and fatigue tester, critical radius of the optimized Ag NWs/SiO2/invar electrode was found to be 6 mm. It demonstrated superior repeated flexibility of an Ag NW/SiO2/invar substrate. Furthermore, we demonstrated the feasibility of using a brush-painted Ag NW/SiO2/invar substrate as an electrode for curved TFHs. These curved TFHs fabricated on an Ag NW/SiO2/invar substrate showed rapid heating properties and high saturation temperature even at low applied voltage due to low resistivity of Ag NW network. This indicates that a brush-painted Ag NW/SiO2/invar substrate is a promising flexible electrode and substrate for high performance curved TFHs.

KW - Brush-painted Ag nanowire

KW - Electrode

KW - Flexibility

KW - Invar metal substrate

KW - Saturation temperature

KW - Thin film heater

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JO - Metals

JF - Metals

IS - 10

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ER -

Study of brush-painted ag nanowire network on flexible invar metal substrate for curved thin film heater

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