Flexible porous carbon black-polymer composites with a high gauge factor

Yi Te Huang; Naoki Inomata; Zhuqing Wang; Yu Ching Lin; Takahito Ono

doi:10.18494/SAM.2020.2853

Flexible porous carbon black-polymer composites with a high gauge factor

Yi Te Huang, Naoki Inomata, Zhuqing Wang, Yu Ching Lin, Takahito Ono

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

7 Citations (Scopus)

Abstract

In this work, new conductive polymer films suitable for microfabrication have been developed. The solutions used are prepared by dispersing highly conductive nanoporous carbon blacks (n-CBs) in PHOTONEECE^® (CBPh), polyvinyl alcohol (CBsPV), or gelatin (CBsGel). Conductive polymer composite thin films are formed by spin-coating on a clean glass substrate. The electrical conductivity and its response to strain are evaluated by a four-point bending method, which shows high gauge factors (GFs) of 150 and 523 for PVA- and gelatin-based composite films, respectively, in a low strain region. This clearly reveals the high potential capability of these novel nanocomposite films with the reported CB composite polymer showing a GF of ~100. It is considered that the porous structure of the n-CBs provides high sensitivity of flexible sensing elements that can be implemented into microfabrication processes easily.

Original language	English
Pages (from-to)	2527-2538
Number of pages	12
Journal	Sensors and Materials
Volume	32
Issue number	7
DOIs	https://doi.org/10.18494/SAM.2020.2853
Publication status	Published - 2020 Jul

Keywords

Carbon black
Conductive polymer
High gauge factor
Nanoporous
Strain sensing

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title = "Flexible porous carbon black-polymer composites with a high gauge factor",

abstract = "In this work, new conductive polymer films suitable for microfabrication have been developed. The solutions used are prepared by dispersing highly conductive nanoporous carbon blacks (n-CBs) in PHOTONEECE{\textregistered} (CBPh), polyvinyl alcohol (CBsPV), or gelatin (CBsGel). Conductive polymer composite thin films are formed by spin-coating on a clean glass substrate. The electrical conductivity and its response to strain are evaluated by a four-point bending method, which shows high gauge factors (GFs) of 150 and 523 for PVA- and gelatin-based composite films, respectively, in a low strain region. This clearly reveals the high potential capability of these novel nanocomposite films with the reported CB composite polymer showing a GF of ~100. It is considered that the porous structure of the n-CBs provides high sensitivity of flexible sensing elements that can be implemented into microfabrication processes easily.",

keywords = "Carbon black, Conductive polymer, High gauge factor, Nanoporous, Strain sensing",

author = "Huang, {Yi Te} and Naoki Inomata and Zhuqing Wang and Lin, {Yu Ching} and Takahito Ono",

note = "Funding Information: Part of this research was performed at Tohoku University Micro System Integration Center and Micro/Nano-Machining Research and Education Center. Publisher Copyright: {\textcopyright} MYU K.K.",

year = "2020",

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doi = "10.18494/SAM.2020.2853",

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AU - Huang, Yi Te

AU - Inomata, Naoki

AU - Wang, Zhuqing

AU - Lin, Yu Ching

AU - Ono, Takahito

N1 - Funding Information: Part of this research was performed at Tohoku University Micro System Integration Center and Micro/Nano-Machining Research and Education Center. Publisher Copyright: © MYU K.K.

PY - 2020/7

Y1 - 2020/7

N2 - In this work, new conductive polymer films suitable for microfabrication have been developed. The solutions used are prepared by dispersing highly conductive nanoporous carbon blacks (n-CBs) in PHOTONEECE® (CBPh), polyvinyl alcohol (CBsPV), or gelatin (CBsGel). Conductive polymer composite thin films are formed by spin-coating on a clean glass substrate. The electrical conductivity and its response to strain are evaluated by a four-point bending method, which shows high gauge factors (GFs) of 150 and 523 for PVA- and gelatin-based composite films, respectively, in a low strain region. This clearly reveals the high potential capability of these novel nanocomposite films with the reported CB composite polymer showing a GF of ~100. It is considered that the porous structure of the n-CBs provides high sensitivity of flexible sensing elements that can be implemented into microfabrication processes easily.

AB - In this work, new conductive polymer films suitable for microfabrication have been developed. The solutions used are prepared by dispersing highly conductive nanoporous carbon blacks (n-CBs) in PHOTONEECE® (CBPh), polyvinyl alcohol (CBsPV), or gelatin (CBsGel). Conductive polymer composite thin films are formed by spin-coating on a clean glass substrate. The electrical conductivity and its response to strain are evaluated by a four-point bending method, which shows high gauge factors (GFs) of 150 and 523 for PVA- and gelatin-based composite films, respectively, in a low strain region. This clearly reveals the high potential capability of these novel nanocomposite films with the reported CB composite polymer showing a GF of ~100. It is considered that the porous structure of the n-CBs provides high sensitivity of flexible sensing elements that can be implemented into microfabrication processes easily.

KW - Carbon black

KW - Conductive polymer

KW - High gauge factor

KW - Nanoporous

KW - Strain sensing

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Flexible porous carbon black-polymer composites with a high gauge factor

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Keywords

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