Abstract
Degradation and delamination have been technically challenging for poly(3,4-ethylenedioxythiophene): polystyrene sulfonate) (PEDOT:PSS) thin-film processing due to environmental humidity. To overcome this problem, we introduced a one-step photolithographic method to both pattern and link a PEDOT:PSS film onto a PEG layer as a hybrid thin-film structure on a flexible substrate, which exhibited excellent long-Term moisture stability (10 days) and high lithographic resolution (2 urn). Mechanical characterizations (bending and tensile tests) illustrated strong adhesions between the PEDOT:PSS and PEG layers as well as between the hybrid thin-film and substrate. Moreover, the hybrid moisture-Absorbable film showed a quick response of its permittivity to environmental humidity variations, in which patterned PEDOT:PSS layer served as an electrode and the PEG layer as a moisture sensing element. As demonstrations, perspiration tracking over various parts of the body surface as well as breath rate measurement were successfully carried out, which illustrated the potential utility of this stable hybrid thin-film for emerging flexible and wearable humidity sensing applications.
| Original language | English (US) |
|---|---|
| Title of host publication | 2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Pages | 318-322 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781509030590 |
| DOIs | |
| State | Published - Aug 25 2017 |
| Event | 12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 - Los Angeles, United States Duration: Apr 9 2017 → Apr 12 2017 |
Other
| Other | 12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017 |
|---|---|
| Country | United States |
| City | Los Angeles |
| Period | 4/9/17 → 4/12/17 |
Fingerprint
Keywords
- breath rate measurement
- humidity sensor
- hybrid thin-film
- moisture stability
- one-step photopatterning
- PEDOT:PSS
- perspiration tracking
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Mechanical Engineering
- Electronic, Optical and Magnetic Materials
- Instrumentation
Cite this
Photopatternable and moisture-stable PEDOT:PSS/PEG hybrid thin-film for flexible and wearable humidity sensing. / Zhu, Zijie; Li, Ruya; Pan, Tingrui.
2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 318-322 8017033.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Photopatternable and moisture-stable PEDOT:PSS/PEG hybrid thin-film for flexible and wearable humidity sensing
AU - Zhu, Zijie
AU - Li, Ruya
AU - Pan, Tingrui
PY - 2017/8/25
Y1 - 2017/8/25
N2 - Degradation and delamination have been technically challenging for poly(3,4-ethylenedioxythiophene): polystyrene sulfonate) (PEDOT:PSS) thin-film processing due to environmental humidity. To overcome this problem, we introduced a one-step photolithographic method to both pattern and link a PEDOT:PSS film onto a PEG layer as a hybrid thin-film structure on a flexible substrate, which exhibited excellent long-Term moisture stability (10 days) and high lithographic resolution (2 urn). Mechanical characterizations (bending and tensile tests) illustrated strong adhesions between the PEDOT:PSS and PEG layers as well as between the hybrid thin-film and substrate. Moreover, the hybrid moisture-Absorbable film showed a quick response of its permittivity to environmental humidity variations, in which patterned PEDOT:PSS layer served as an electrode and the PEG layer as a moisture sensing element. As demonstrations, perspiration tracking over various parts of the body surface as well as breath rate measurement were successfully carried out, which illustrated the potential utility of this stable hybrid thin-film for emerging flexible and wearable humidity sensing applications.
AB - Degradation and delamination have been technically challenging for poly(3,4-ethylenedioxythiophene): polystyrene sulfonate) (PEDOT:PSS) thin-film processing due to environmental humidity. To overcome this problem, we introduced a one-step photolithographic method to both pattern and link a PEDOT:PSS film onto a PEG layer as a hybrid thin-film structure on a flexible substrate, which exhibited excellent long-Term moisture stability (10 days) and high lithographic resolution (2 urn). Mechanical characterizations (bending and tensile tests) illustrated strong adhesions between the PEDOT:PSS and PEG layers as well as between the hybrid thin-film and substrate. Moreover, the hybrid moisture-Absorbable film showed a quick response of its permittivity to environmental humidity variations, in which patterned PEDOT:PSS layer served as an electrode and the PEG layer as a moisture sensing element. As demonstrations, perspiration tracking over various parts of the body surface as well as breath rate measurement were successfully carried out, which illustrated the potential utility of this stable hybrid thin-film for emerging flexible and wearable humidity sensing applications.
KW - breath rate measurement
KW - humidity sensor
KW - hybrid thin-film
KW - moisture stability
KW - one-step photopatterning
KW - PEDOT:PSS
KW - perspiration tracking
UR - http://www.scopus.com/inward/record.url?scp=85030871870&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85030871870&partnerID=8YFLogxK
U2 - 10.1109/NEMS.2017.8017033
DO - 10.1109/NEMS.2017.8017033
M3 - Conference contribution
AN - SCOPUS:85030871870
SP - 318
EP - 322
BT - 2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
PB - Institute of Electrical and Electronics Engineers Inc.
ER -