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Transport-structure relationship in conductive polymers Nicolas Massonnet, Alexandre Carella, Jean-Pierre Simonato, CEA-LITEN, Grenoble
20nm
30nm
Vertically-aligned CNT on Al for energy harvesting
Functionnalized graphene for on-chip biosensing
Nicolas Massonnet, Loïc Assaud, Brigitte Caussat, Hugues Vergne, LGC, Toulouse Nicolas Massonnet, Mathieu Pinault, Martine Mayne, CEA-IRAMIS, Saclay
Now working on CNT-based chemical sensors
Context : Improving PEDOT:PSS thermoelectric properties by substituing PSS with low hinderance counter-anions…
CVD graphene synthesis on Pt electrodes :
Diazonium grafting and PEDOT polymerization
Electrochemical on-chip detection
DirectCVDgrowthofCNTonAlforsupercapacitor
PEDOT:PSS
CF3SO3-
à PEDOT:OTf
SO42-
à PEDOT:Sulf
AFM on PEDOT:PSS (top) and PEDOT:Otf
(bottom)
XRD on PEDOT:PSS and
PEDOT:OTf
d = 3,4 Åd = 3,9 Åd = 7 Åd = 14 Å
Conductivity at low temperature shows changes in conduction mechanisms
Variable Range Hopping
Critical mode Metallic mode
XPS spectra of PEDOT:PSS and PEDOT:OTf
graphene
Diazonium reduction
EDOT polymerization
AAUA
SEM on the Pt electrodes
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ater
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014G
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97
Collector
Electrode Electrolyte Separator
TEM observations of NTC synthetized at different T
Low T aerosol CVD process
Supercapacitor
Samples after CNT growth
520 °C 550 °C 580 °C 610 °C
HR-TEM observation of low T NTC