TY - JOUR
T1 - The Organic Power Transistor: Roll-to-Roll Manufacture, Thermal Behavior, and Power Handling When Driving Printed Electronics
AU - Pastorelli, Francesco
AU - Schmidt, Thomas Mikael
AU - Hösel, Markus
AU - Søndergaard, Roar R.
AU - Jørgensen, Mikkel
AU - Krebs, Frederik C
PY - 2016
Y1 - 2016
N2 - We present flexible organic power transistors prepared by
fast (20mmin1) roll-to-roll (R2R) flexographic printing[1] of
the drain (D) and source (S) electrode structures directly on
polyester foil. The devices have top gate architecture and were
completed by spin coating or slot-die coating of the organic
semiconductor poly-3-hexylthiophene (P3HT) and the dielectric
material polyvinylphenol (PVP) before the gate (G) was
applied by either screen printing or evaporation of silver. We
explore the footprint and the practically accessible geometry
of such devices with a special view toward being able to drive
large currents while handling the thermal aspects in operation
together with other organic printed electronics technologies
such as large area organic photovoltaics (OPV)[2] and large
area electrochromic displays (EC).[3] We find especially that an
elevated operational temperature is beneficial with respect to
both transconductance and on/off ratio. We achieve high
currents of up to 45mA at a temperature of 80 C with an on/
off ratio of 100 which is sufficient to drive large area organic
electronics such as an EC device powered by OPV devices that
we also demonstrate. Finally, we observe a significant
temperature dependence of the performance which can be
explored further in sensing applications.
AB - We present flexible organic power transistors prepared by
fast (20mmin1) roll-to-roll (R2R) flexographic printing[1] of
the drain (D) and source (S) electrode structures directly on
polyester foil. The devices have top gate architecture and were
completed by spin coating or slot-die coating of the organic
semiconductor poly-3-hexylthiophene (P3HT) and the dielectric
material polyvinylphenol (PVP) before the gate (G) was
applied by either screen printing or evaporation of silver. We
explore the footprint and the practically accessible geometry
of such devices with a special view toward being able to drive
large currents while handling the thermal aspects in operation
together with other organic printed electronics technologies
such as large area organic photovoltaics (OPV)[2] and large
area electrochromic displays (EC).[3] We find especially that an
elevated operational temperature is beneficial with respect to
both transconductance and on/off ratio. We achieve high
currents of up to 45mA at a temperature of 80 C with an on/
off ratio of 100 which is sufficient to drive large area organic
electronics such as an EC device powered by OPV devices that
we also demonstrate. Finally, we observe a significant
temperature dependence of the performance which can be
explored further in sensing applications.
U2 - 10.1002/adem.201500348
DO - 10.1002/adem.201500348
M3 - Journal article
SN - 1438-1656
VL - 18
SP - 51
EP - 55
JO - Advanced Engineering Materials
JF - Advanced Engineering Materials
IS - 1
ER -