Document Detail

An ultra-sensitive resistive pressure sensor based on hollow-sphere microstructure induced elasticity in conducting polymer film.
MedLine Citation:
PMID:  24389734     Owner:  NLM     Status:  In-Data-Review    
Pressure sensing is an important function of electronic skin devices. The development of pressure sensors that can mimic and surpass the subtle pressure sensing properties of natural skin requires the rational design of materials and devices. Here we present an ultra-sensitive resistive pressure sensor based on an elastic, microstructured conducting polymer thin film. The elastic microstructured film is prepared from a polypyrrole hydrogel using a multiphase reaction that produced a hollow-sphere microstructure that endows polypyrrole with structure-derived elasticity and a low effective elastic modulus. The contact area between the microstructured thin film and the electrodes increases with the application of pressure, enabling the device to detect low pressures with ultra-high sensitivity. Our pressure sensor based on an elastic microstructured thin film enables the detection of pressures of less than 1 Pa and exhibits a short response time, good reproducibility, excellent cycling stability and temperature-stable sensing.
Lijia Pan; Alex Chortos; Guihua Yu; Yaqun Wang; Scott Isaacson; Ranulfo Allen; Yi Shi; Reinhold Dauskardt; Zhenan Bao
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Nature communications     Volume:  5     ISSN:  2041-1723     ISO Abbreviation:  Nat Commun     Publication Date:  2014 Jan 
Date Detail:
Created Date:  2014-01-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101528555     Medline TA:  Nat Commun     Country:  England    
Other Details:
Languages:  eng     Pagination:  3002     Citation Subset:  IM    
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