Abstract
This paper describes the fabrication process of laser induced graphene (LIG) and its transfer method on to a flexible and stretchable PDMS substrate. By irradiating CO2 laser on a polyimide(PI) film surface, a localized high temperature is created, resulting in a three-dimensional porous graphene network structure with good conductivity. This LIG electrode is relatively easy to fabricate and since it is very weak the LIG electrode was transferred to a flexible PDMS substrate to increase the sturdiness as well as possible use in flexible applications. Sheet resistance, thickness, and electrochemical activity of the fabricated in-situ LIG electrodes have been examined and compared with the LIG electrodes after transferring to PDMS elastomer. The properties of the LIG electrodes were also examined depending on the CO2 laser power. As the irradiated laser power increased, the LIG electrode resistance decreases and the LIG electrode thickness increased. At 4.8 W of laser power, the average sheet resistance and thickness of the fabricated LIG electrodes were approximately 31.7 Ω/ □ and 62.67 μm, respectively. Moreover, the electrochemical activity of the fabricated LIG electrode at 4.8 W of laser power showed a high oxidation current of 28.2 μA after transferring to PDMS.
| Original language | English |
|---|---|
| Pages (from-to) | 406-412 |
| Number of pages | 7 |
| Journal | Transactions of the Korean Institute of Electrical Engineers |
| Volume | 67 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2018 Mar 1 |
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Keywords
- Flexible sensor
- Laser induced graphene
- LIG
- PDMS
- Transfer
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
Fabrication and transfer of laser induced graphene (LIG) electrode for flexible substrate-based electrochemical sensor applicatins. / Kim, Jeong Dae; Kim, Taeheon; Pak, James Jungho.
In: Transactions of the Korean Institute of Electrical Engineers, Vol. 67, No. 3, 01.03.2018, p. 406-412.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fabrication and transfer of laser induced graphene (LIG) electrode for flexible substrate-based electrochemical sensor applicatins
AU - Kim, Jeong Dae
AU - Kim, Taeheon
AU - Pak, James Jungho
PY - 2018/3/1
Y1 - 2018/3/1
N2 - This paper describes the fabrication process of laser induced graphene (LIG) and its transfer method on to a flexible and stretchable PDMS substrate. By irradiating CO2 laser on a polyimide(PI) film surface, a localized high temperature is created, resulting in a three-dimensional porous graphene network structure with good conductivity. This LIG electrode is relatively easy to fabricate and since it is very weak the LIG electrode was transferred to a flexible PDMS substrate to increase the sturdiness as well as possible use in flexible applications. Sheet resistance, thickness, and electrochemical activity of the fabricated in-situ LIG electrodes have been examined and compared with the LIG electrodes after transferring to PDMS elastomer. The properties of the LIG electrodes were also examined depending on the CO2 laser power. As the irradiated laser power increased, the LIG electrode resistance decreases and the LIG electrode thickness increased. At 4.8 W of laser power, the average sheet resistance and thickness of the fabricated LIG electrodes were approximately 31.7 Ω/ □ and 62.67 μm, respectively. Moreover, the electrochemical activity of the fabricated LIG electrode at 4.8 W of laser power showed a high oxidation current of 28.2 μA after transferring to PDMS.
AB - This paper describes the fabrication process of laser induced graphene (LIG) and its transfer method on to a flexible and stretchable PDMS substrate. By irradiating CO2 laser on a polyimide(PI) film surface, a localized high temperature is created, resulting in a three-dimensional porous graphene network structure with good conductivity. This LIG electrode is relatively easy to fabricate and since it is very weak the LIG electrode was transferred to a flexible PDMS substrate to increase the sturdiness as well as possible use in flexible applications. Sheet resistance, thickness, and electrochemical activity of the fabricated in-situ LIG electrodes have been examined and compared with the LIG electrodes after transferring to PDMS elastomer. The properties of the LIG electrodes were also examined depending on the CO2 laser power. As the irradiated laser power increased, the LIG electrode resistance decreases and the LIG electrode thickness increased. At 4.8 W of laser power, the average sheet resistance and thickness of the fabricated LIG electrodes were approximately 31.7 Ω/ □ and 62.67 μm, respectively. Moreover, the electrochemical activity of the fabricated LIG electrode at 4.8 W of laser power showed a high oxidation current of 28.2 μA after transferring to PDMS.
KW - Flexible sensor
KW - Laser induced graphene
KW - LIG
KW - PDMS
KW - Transfer
UR - http://www.scopus.com/inward/record.url?scp=85046102492&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85046102492&partnerID=8YFLogxK
U2 - 10.5370/KIEE.2018.67.3.406
DO - 10.5370/KIEE.2018.67.3.406
M3 - Article
AN - SCOPUS:85046102492
VL - 67
SP - 406
EP - 412
JO - Transactions of the Korean Institute of Electrical Engineers
JF - Transactions of the Korean Institute of Electrical Engineers
SN - 1975-8359
IS - 3
ER -