Microtopography‐Guided Conductive Patterns of Liquid‐Driven Graphene Nanoplatelet Networks for Stretchable and Skin‐Conformal Sensor Array

Flexible thin‐film sensors have been developed for practical uses in invasive or noninvasive cost‐effective healthcare devices, which requires high sensitivity, stretchability, biocompatibility, skin/organ‐conformity, and often transparency. Graphene nanoplatelets can be spontaneously assembled into...

Full description

Saved in:
Bibliographic Details
Published in:Advanced materials (Weinheim) 2017-06, Vol.29 (21), p.n/a
Main Authors: Park, Youngjin, Shim, Jongwon, Jeong, Suyeon, Yi, Gi‐Ra, Chae, Heeyeop, Bae, Jong Wook, Kim, Sang Ouk, Pang, Changhyun
Format: Article
Language:English
Subjects:
Amplification
Architecture
Biocompatibility
biosensors
conductive patterning
Deformation
Diagnosis
Electric contacts
Electrical resistivity
Formability
Graphene
graphene nanoplatelets
Illnesses
Pixels
Rubber
self‐assembly
Sensitivity
Sensors
Skin
Skin preparations
Stretchability
Substrates
Thin films
Waveforms
Wearable technology
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:Flexible thin‐film sensors have been developed for practical uses in invasive or noninvasive cost‐effective healthcare devices, which requires high sensitivity, stretchability, biocompatibility, skin/organ‐conformity, and often transparency. Graphene nanoplatelets can be spontaneously assembled into transparent and conductive ultrathin coatings on micropatterned surfaces or planar substrates via a convective Marangoni force in a highly controlled manner. Based on this versatile graphene assembled film preparation, a thin, stretchable and skin‐conformal sensor array (144 pixels) is fabricated having microtopography‐guided, graphene‐based, conductive patterns embedded without any complicated processes. The electrically controlled sensor array for mapping spatial distributions (144 pixels) shows high sensitivity (maximum gauge factor ≈1697), skin‐like stretchability (
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201606453