Microporous Polypyrrole-Coated Graphene Foam for High-Performance Multifunctional Sensors and Flexible Supercapacitors

Heun Park, Jung Wook Kim, Soo Yeong Hong, Geumbee Lee, Dong Sik Kim, Ju hyun Oh, Sang Woo Jin, Yu Ra Jeong, Seung Yun Oh, Jun Yeong Yun, Jeong Sook Ha

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

This study reports on the fabrication of pressure/temperature/strain sensors and all-solid-state flexible supercapacitors using only polydimethylsiloxane coated microporous polypyrrole/graphene foam composite (PDMS/PPy/GF) as a common material. A dual-mode sensor is designed with PDMS/PPy/GF, which measures pressure and temperature with the changes of current and voltage, respectively, without interference to each other. The fabricated dual-mode sensor shows high sensitivity, fast response/recovery, and high durability during 10 000 cycles of pressure loading. The pressure is estimated using the thermoelectric voltage induced by simultaneous increase in temperature caused by a finger touch on the sensor. Additionally, a resistor-type strain sensor fabricated using the same PDMS/PPy/GF could detect the strain up to 50%. Flexible, high performance supercapacitor used as a power supply is fabricated with electrodes of PPy/GF for its high surface area and pseudocapacitance. Furthermore, an integrated system of such fabricated multifunctional sensors and a supercapacitor on a skin-attachable flexible substrate using liquid–metal interconnections operates well, whereas sensors are driven by the power of the supercapacitor. This study clearly demonstrates that the appropriate choice of a single functional material enables fabrication of active multifunctional sensors for pressure, temperature, and strain, as well as the supercapacitor, that could be used in wirelessly powered wearable devices.

Original languageEnglish
Article number1707013
JournalAdvanced Functional Materials
Volume28
Issue number33
DOIs
Publication statusPublished - 2018 Aug 15

Fingerprint

Graphite
electrochemical capacitors
polypyrroles
Polypyrroles
foams
Graphene
Foams
graphene
sensors
Sensors
Polydimethylsiloxane
composite materials
Composite materials
Fabrication
Temperature
fabrication
Functional materials
temperature
Supercapacitor
polypyrrole

Keywords

  • integrated system
  • multifunctional sensors
  • polypyrrole-coated graphene foam
  • supercapacitors
  • wireless powering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Condensed Matter Physics
  • Electrochemistry

Cite this

Microporous Polypyrrole-Coated Graphene Foam for High-Performance Multifunctional Sensors and Flexible Supercapacitors. / Park, Heun; Kim, Jung Wook; Hong, Soo Yeong; Lee, Geumbee; Kim, Dong Sik; Oh, Ju hyun; Jin, Sang Woo; Jeong, Yu Ra; Oh, Seung Yun; Yun, Jun Yeong; Ha, Jeong Sook.

In: Advanced Functional Materials, Vol. 28, No. 33, 1707013, 15.08.2018.

Research output: Contribution to journalArticle

Park, Heun ; Kim, Jung Wook ; Hong, Soo Yeong ; Lee, Geumbee ; Kim, Dong Sik ; Oh, Ju hyun ; Jin, Sang Woo ; Jeong, Yu Ra ; Oh, Seung Yun ; Yun, Jun Yeong ; Ha, Jeong Sook. / Microporous Polypyrrole-Coated Graphene Foam for High-Performance Multifunctional Sensors and Flexible Supercapacitors. In: Advanced Functional Materials. 2018 ; Vol. 28, No. 33.
@article{072b32259f4041419aaabbec8c6e4c41,
title = "Microporous Polypyrrole-Coated Graphene Foam for High-Performance Multifunctional Sensors and Flexible Supercapacitors",
abstract = "This study reports on the fabrication of pressure/temperature/strain sensors and all-solid-state flexible supercapacitors using only polydimethylsiloxane coated microporous polypyrrole/graphene foam composite (PDMS/PPy/GF) as a common material. A dual-mode sensor is designed with PDMS/PPy/GF, which measures pressure and temperature with the changes of current and voltage, respectively, without interference to each other. The fabricated dual-mode sensor shows high sensitivity, fast response/recovery, and high durability during 10 000 cycles of pressure loading. The pressure is estimated using the thermoelectric voltage induced by simultaneous increase in temperature caused by a finger touch on the sensor. Additionally, a resistor-type strain sensor fabricated using the same PDMS/PPy/GF could detect the strain up to 50{\%}. Flexible, high performance supercapacitor used as a power supply is fabricated with electrodes of PPy/GF for its high surface area and pseudocapacitance. Furthermore, an integrated system of such fabricated multifunctional sensors and a supercapacitor on a skin-attachable flexible substrate using liquid–metal interconnections operates well, whereas sensors are driven by the power of the supercapacitor. This study clearly demonstrates that the appropriate choice of a single functional material enables fabrication of active multifunctional sensors for pressure, temperature, and strain, as well as the supercapacitor, that could be used in wirelessly powered wearable devices.",
keywords = "integrated system, multifunctional sensors, polypyrrole-coated graphene foam, supercapacitors, wireless powering",
author = "Heun Park and Kim, {Jung Wook} and Hong, {Soo Yeong} and Geumbee Lee and Kim, {Dong Sik} and Oh, {Ju hyun} and Jin, {Sang Woo} and Jeong, {Yu Ra} and Oh, {Seung Yun} and Yun, {Jun Yeong} and Ha, {Jeong Sook}",
year = "2018",
month = "8",
day = "15",
doi = "10.1002/adfm.201707013",
language = "English",
volume = "28",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "Wiley-VCH Verlag",
number = "33",

}

TY - JOUR

T1 - Microporous Polypyrrole-Coated Graphene Foam for High-Performance Multifunctional Sensors and Flexible Supercapacitors

AU - Park, Heun

AU - Kim, Jung Wook

AU - Hong, Soo Yeong

AU - Lee, Geumbee

AU - Kim, Dong Sik

AU - Oh, Ju hyun

AU - Jin, Sang Woo

AU - Jeong, Yu Ra

AU - Oh, Seung Yun

AU - Yun, Jun Yeong

AU - Ha, Jeong Sook

PY - 2018/8/15

Y1 - 2018/8/15

N2 - This study reports on the fabrication of pressure/temperature/strain sensors and all-solid-state flexible supercapacitors using only polydimethylsiloxane coated microporous polypyrrole/graphene foam composite (PDMS/PPy/GF) as a common material. A dual-mode sensor is designed with PDMS/PPy/GF, which measures pressure and temperature with the changes of current and voltage, respectively, without interference to each other. The fabricated dual-mode sensor shows high sensitivity, fast response/recovery, and high durability during 10 000 cycles of pressure loading. The pressure is estimated using the thermoelectric voltage induced by simultaneous increase in temperature caused by a finger touch on the sensor. Additionally, a resistor-type strain sensor fabricated using the same PDMS/PPy/GF could detect the strain up to 50%. Flexible, high performance supercapacitor used as a power supply is fabricated with electrodes of PPy/GF for its high surface area and pseudocapacitance. Furthermore, an integrated system of such fabricated multifunctional sensors and a supercapacitor on a skin-attachable flexible substrate using liquid–metal interconnections operates well, whereas sensors are driven by the power of the supercapacitor. This study clearly demonstrates that the appropriate choice of a single functional material enables fabrication of active multifunctional sensors for pressure, temperature, and strain, as well as the supercapacitor, that could be used in wirelessly powered wearable devices.

AB - This study reports on the fabrication of pressure/temperature/strain sensors and all-solid-state flexible supercapacitors using only polydimethylsiloxane coated microporous polypyrrole/graphene foam composite (PDMS/PPy/GF) as a common material. A dual-mode sensor is designed with PDMS/PPy/GF, which measures pressure and temperature with the changes of current and voltage, respectively, without interference to each other. The fabricated dual-mode sensor shows high sensitivity, fast response/recovery, and high durability during 10 000 cycles of pressure loading. The pressure is estimated using the thermoelectric voltage induced by simultaneous increase in temperature caused by a finger touch on the sensor. Additionally, a resistor-type strain sensor fabricated using the same PDMS/PPy/GF could detect the strain up to 50%. Flexible, high performance supercapacitor used as a power supply is fabricated with electrodes of PPy/GF for its high surface area and pseudocapacitance. Furthermore, an integrated system of such fabricated multifunctional sensors and a supercapacitor on a skin-attachable flexible substrate using liquid–metal interconnections operates well, whereas sensors are driven by the power of the supercapacitor. This study clearly demonstrates that the appropriate choice of a single functional material enables fabrication of active multifunctional sensors for pressure, temperature, and strain, as well as the supercapacitor, that could be used in wirelessly powered wearable devices.

KW - integrated system

KW - multifunctional sensors

KW - polypyrrole-coated graphene foam

KW - supercapacitors

KW - wireless powering

UR - http://www.scopus.com/inward/record.url?scp=85051414051&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85051414051&partnerID=8YFLogxK

U2 - 10.1002/adfm.201707013

DO - 10.1002/adfm.201707013

M3 - Article

VL - 28

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

IS - 33

M1 - 1707013

ER -