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
N1 - Publisher Copyright:
© 2017 IEEE.
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 - PEDOT:PSS
KW - breath rate measurement
KW - humidity sensor
KW - hybrid thin-film
KW - moisture stability
KW - one-step photopatterning
KW - perspiration tracking
UR - https://www.scopus.com/pages/publications/85030871870
U2 - 10.1109/NEMS.2017.8017033
DO - 10.1109/NEMS.2017.8017033
M3 - 会议稿件
AN - SCOPUS:85030871870
T3 - 2017 IEEE 12th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
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.
T2 - 12th IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2017
Y2 - 9 April 2017 through 12 April 2017
ER -