Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 11, Pages 8320-8326Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am501151v
Keywords
graphene oxide; poly(sodium 4-styrenesulfonate); humidity sensor; dielectric
Funding
- National Research Foundation of Korea [2009-0083512, 2009-0078659, 2011-0024818]
- Defense Acquisition Program Administration
- Agency for Defense Development [UD100048JD]
- Civil & Military Technology Cooperation Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [2013M3C1A9055407]
- Development of Multi-Physics based Micro Manufacturing (MP-M2) Technologies for Biomedical Projects International Collaborative R&D Program project of ministry of knowledge economy
- Development of Nano-level Surface Reformation Process and an Equipment using Ultrasonic Vibration of the Ministry of Trade, Industry and Energy (MOTIE)
- Institute of Advanced Aerospace Technology at Seoul National University
- National Research Foundation of Korea [2009-0078659, 2011-0024818] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
This Research Article reports self-powered humidity sensors based on graphene oxide (GO) and poly(sodium 4-styrenesulfonate) (PSS)-intercalated GO composite films used as the humidity-responsive dielectrics. A hydrophilic and electrically-insulating PSS polymer was used as an intercalant between the individual GO platelets to enhance the water permeation characteristics. Capacitive-type humidity sensors fabricated by forming metal electrodes on both sides of the GO and GO-PSS films were installed into the charge pumping system, which can produce a voltage output as a response to humidity sensing. While both sensors based on GO and GO-PSS dielectrics responded stably and reversibly to the changes in RH, the GO-PSS sensor showed enhanced sensing responses compared to the GO sensor, providing similar to 5.6 times higher voltage output and 3 times faster responses in humidity sensing.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available