395 218

A sensor array using multi-functional field-effect transistors with ultrahigh sensitivity and precision for bio-monitoring

Title
A sensor array using multi-functional field-effect transistors with ultrahigh sensitivity and precision for bio-monitoring
Author
배지현
Issue Date
2015-07
Publisher
Macmillan
Citation
Scientific Reports 5, Article number: 12705
Abstract
Mechanically adaptive electronic skins (e-skins) emulate tactition and thermoception by cutaneous mechanoreceptors and thermoreceptors in human skin, respectively. When exposed to multiple stimuli including mechanical and thermal stimuli, discerning and quantifying precise sensing signals from sensors embedded in e-skins are critical. In addition, different detection modes for mechanical stimuli, rapidly adapting (RA) and slowly adapting (SA) mechanoreceptors in human skin are simultaneously required. Herein, we demonstrate the fabrication of a highly sensitive, pressure-responsive organic field-effect transistor (OFET) array enabling both RA- and SA- mode detection by adopting easily deformable, mechano-electrically coupled, microstructured ferroelectric gate dielectrics and an organic semiconductor channel. We also demonstrate that the OFET array can separate out thermal stimuli for thermoreception during quantification of SA-type static pressure, by decoupling the input signals of pressure and temperature. Specifically, we adopt piezoelectric-pyroelectric coupling of highly crystalline, microstructured poly(vinylidene fluoride-trifluoroethylene) gate dielectric in OFETs with stimuli to allow monitoring of RA- and SA-mode responses to dynamic and static forcing conditions, respectively. This approach enables us to apply the sensor array to e-skins for bio-monitoring of humans and robotics.
URI
http://www.nature.com/articles/srep12705http://hdl.handle.net/20.500.11754/26014
ISSN
2045-2322
DOI
10.1038/srep12705
Appears in Collections:
COLLEGE OF HUMAN ECOLOGY[S](생활과학대학) > CLOTHING & TEXTILES(의류학과) > Articles
Files in This Item:
A Sensor Array Using Multi-functional Field-effect Transistors with Ultrahigh Sensitivity and Precision for Bio-monitoring.pdfDownload
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE