A tactile sensor using a conductive graphene-sponge composite

For sensors that emulate human tactile perception, we suggest a simple method for fabricating a highly sensitive force sensor using a conductive polyurethane sponge where graphene flakes are self-assembled into the porous structure of the sponge. The complete sensor device shows a sensitive and reli...

Full description

Saved in:
Bibliographic Details
Published in:Nanoscale 2016-04, Vol.8 (17), p.9185-9192
Main Authors: Chun, Sungwoo, Hong, Ahyoung, Choi, Yeonhoi, Ha, Chunho, Park, Wanjun
Format: Article
Language:English
Subjects:
Graphene
Human behavior
Perception
Ridges
Sensors
Sponges
Tactile
Vibration
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:For sensors that emulate human tactile perception, we suggest a simple method for fabricating a highly sensitive force sensor using a conductive polyurethane sponge where graphene flakes are self-assembled into the porous structure of the sponge. The complete sensor device shows a sensitive and reliable detection response for a broad range of pressure and dynamic pressure that correspond to human tactile perception. Sensitivity of the sensor to detect vibration is also confirmed with vertical actuations due to slipping over micro-scale ridge structures attached on the sensors. Based on the sensor's ability to detect both pressure and vibration, the sensor can be utilized as a flexible tactile sensor. A simple method for highly sensitive and flexible graphene-sponge composites and their application toward tactile sensing is reported.
ISSN:2040-3364
2040-3372
DOI:10.1039/c6nr00774k