Fingerprint-Inspired Conducting Hierarchical Wrinkles for Energy-Harvesting E-Skin

Hyungseok Kang, Chunlin Zhao, Jinrong Huang, Dong Hae Ho, Yonas Tsegaye Megra, Ji Won Suk, Jia Sun, Zhong Lin Wang, Qijun Sun, Jeong Ho Cho

Research output: Contribution to journalArticle

Abstract

In the field of bionics, sophisticated and multifunctional electronic skins with a mechanosensing function that are inspired by nature are developed. Here, an energy-harvesting electronic skin (energy-E-skin), i.e., a pressure sensor with energy-harvesting functions is demonstrated, based on fingerprint-inspired conducting hierarchical wrinkles. The conducting hierarchical wrinkles, fabricated via 2D stretching and subsequent Ar plasma treatment, are composed of polydimethylsiloxane (PDMS) wrinkles as the primary microstructure and embedded Ag nanowires (AgNWs) as the secondary nanostructure. The structure and resistance of the conducting hierarchical wrinkles are deterministically controlled by varying the stretching direction, Ar plasma power, and treatment time. This hierarchical-wrinkle-based conductor successfully harvests mechanical energy via contact electrification and electrostatic induction and also realizes self-powered pressure sensing. The energy-E-skin delivers an average output power of 3.5 mW with an open-circuit voltage of 300 V and a short-circuit current of 35 µA; this power is sufficient to drive commercial light-emitting diodes and portable electronic devices. The hierarchical-wrinkle-based conductor is also utilized as a self-powered tactile pressure sensor with a sensitivity of 1.187 mV Pa-1 in both contact-separation mode and the single-electrode mode. The proposed energy-E-skin has great potential for use as a next-generation multifunctional artificial skin, self-powered human–machine interface, wearable thin-film power source, and so on.

Original languageEnglish
Article number1903580
JournalAdvanced Functional Materials
DOIs
Publication statusAccepted/In press - 2019 Jan 1

Fingerprint

Energy harvesting
Skin
conduction
Pressure sensors
electronics
Stretching
pressure sensors
Artificial Skin
Plasmas
Bionics
conductors
energy
Open circuit voltage
bionics
electrification
Short circuit currents
Nanowires
Light emitting diodes
Electrostatics
Polydimethylsiloxane

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Electrochemistry

Cite this

Kang, Hyungseok ; Zhao, Chunlin ; Huang, Jinrong ; Ho, Dong Hae ; Megra, Yonas Tsegaye ; Suk, Ji Won ; Sun, Jia ; Wang, Zhong Lin ; Sun, Qijun ; Cho, Jeong Ho. / Fingerprint-Inspired Conducting Hierarchical Wrinkles for Energy-Harvesting E-Skin. In: Advanced Functional Materials. 2019.
@article{a3623f0ca9094c7ab9184318bf5a5c79,
title = "Fingerprint-Inspired Conducting Hierarchical Wrinkles for Energy-Harvesting E-Skin",
abstract = "In the field of bionics, sophisticated and multifunctional electronic skins with a mechanosensing function that are inspired by nature are developed. Here, an energy-harvesting electronic skin (energy-E-skin), i.e., a pressure sensor with energy-harvesting functions is demonstrated, based on fingerprint-inspired conducting hierarchical wrinkles. The conducting hierarchical wrinkles, fabricated via 2D stretching and subsequent Ar plasma treatment, are composed of polydimethylsiloxane (PDMS) wrinkles as the primary microstructure and embedded Ag nanowires (AgNWs) as the secondary nanostructure. The structure and resistance of the conducting hierarchical wrinkles are deterministically controlled by varying the stretching direction, Ar plasma power, and treatment time. This hierarchical-wrinkle-based conductor successfully harvests mechanical energy via contact electrification and electrostatic induction and also realizes self-powered pressure sensing. The energy-E-skin delivers an average output power of 3.5 mW with an open-circuit voltage of 300 V and a short-circuit current of 35 µA; this power is sufficient to drive commercial light-emitting diodes and portable electronic devices. The hierarchical-wrinkle-based conductor is also utilized as a self-powered tactile pressure sensor with a sensitivity of 1.187 mV Pa-1 in both contact-separation mode and the single-electrode mode. The proposed energy-E-skin has great potential for use as a next-generation multifunctional artificial skin, self-powered human–machine interface, wearable thin-film power source, and so on.",
author = "Hyungseok Kang and Chunlin Zhao and Jinrong Huang and Ho, {Dong Hae} and Megra, {Yonas Tsegaye} and Suk, {Ji Won} and Jia Sun and Wang, {Zhong Lin} and Qijun Sun and Cho, {Jeong Ho}",
year = "2019",
month = "1",
day = "1",
doi = "10.1002/adfm.201903580",
language = "English",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "Wiley-VCH Verlag",

}

Fingerprint-Inspired Conducting Hierarchical Wrinkles for Energy-Harvesting E-Skin. / Kang, Hyungseok; Zhao, Chunlin; Huang, Jinrong; Ho, Dong Hae; Megra, Yonas Tsegaye; Suk, Ji Won; Sun, Jia; Wang, Zhong Lin; Sun, Qijun; Cho, Jeong Ho.

In: Advanced Functional Materials, 01.01.2019.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Fingerprint-Inspired Conducting Hierarchical Wrinkles for Energy-Harvesting E-Skin

AU - Kang, Hyungseok

AU - Zhao, Chunlin

AU - Huang, Jinrong

AU - Ho, Dong Hae

AU - Megra, Yonas Tsegaye

AU - Suk, Ji Won

AU - Sun, Jia

AU - Wang, Zhong Lin

AU - Sun, Qijun

AU - Cho, Jeong Ho

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In the field of bionics, sophisticated and multifunctional electronic skins with a mechanosensing function that are inspired by nature are developed. Here, an energy-harvesting electronic skin (energy-E-skin), i.e., a pressure sensor with energy-harvesting functions is demonstrated, based on fingerprint-inspired conducting hierarchical wrinkles. The conducting hierarchical wrinkles, fabricated via 2D stretching and subsequent Ar plasma treatment, are composed of polydimethylsiloxane (PDMS) wrinkles as the primary microstructure and embedded Ag nanowires (AgNWs) as the secondary nanostructure. The structure and resistance of the conducting hierarchical wrinkles are deterministically controlled by varying the stretching direction, Ar plasma power, and treatment time. This hierarchical-wrinkle-based conductor successfully harvests mechanical energy via contact electrification and electrostatic induction and also realizes self-powered pressure sensing. The energy-E-skin delivers an average output power of 3.5 mW with an open-circuit voltage of 300 V and a short-circuit current of 35 µA; this power is sufficient to drive commercial light-emitting diodes and portable electronic devices. The hierarchical-wrinkle-based conductor is also utilized as a self-powered tactile pressure sensor with a sensitivity of 1.187 mV Pa-1 in both contact-separation mode and the single-electrode mode. The proposed energy-E-skin has great potential for use as a next-generation multifunctional artificial skin, self-powered human–machine interface, wearable thin-film power source, and so on.

AB - In the field of bionics, sophisticated and multifunctional electronic skins with a mechanosensing function that are inspired by nature are developed. Here, an energy-harvesting electronic skin (energy-E-skin), i.e., a pressure sensor with energy-harvesting functions is demonstrated, based on fingerprint-inspired conducting hierarchical wrinkles. The conducting hierarchical wrinkles, fabricated via 2D stretching and subsequent Ar plasma treatment, are composed of polydimethylsiloxane (PDMS) wrinkles as the primary microstructure and embedded Ag nanowires (AgNWs) as the secondary nanostructure. The structure and resistance of the conducting hierarchical wrinkles are deterministically controlled by varying the stretching direction, Ar plasma power, and treatment time. This hierarchical-wrinkle-based conductor successfully harvests mechanical energy via contact electrification and electrostatic induction and also realizes self-powered pressure sensing. The energy-E-skin delivers an average output power of 3.5 mW with an open-circuit voltage of 300 V and a short-circuit current of 35 µA; this power is sufficient to drive commercial light-emitting diodes and portable electronic devices. The hierarchical-wrinkle-based conductor is also utilized as a self-powered tactile pressure sensor with a sensitivity of 1.187 mV Pa-1 in both contact-separation mode and the single-electrode mode. The proposed energy-E-skin has great potential for use as a next-generation multifunctional artificial skin, self-powered human–machine interface, wearable thin-film power source, and so on.

UR - http://www.scopus.com/inward/record.url?scp=85070825488&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070825488&partnerID=8YFLogxK

U2 - 10.1002/adfm.201903580

DO - 10.1002/adfm.201903580

M3 - Article

AN - SCOPUS:85070825488

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

M1 - 1903580

ER -