1 ert cnfrs/ursi journées scientifiques 2007 transistors organiques ambipolaires j.-m. nunzi, a....
TRANSCRIPT
![Page 1: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/1.jpg)
1ERTERT CNFRS/URSI Journées Scientifiques 2007
Transistors organiques ambipolaires
J.-M. Nunzi, A. Pandey, N. Unni
Cellules Solaires Photovoltaïques Plastiques,POMA – CNRS, Université d’Angers
Transistors organiques ambipolaires
J.-M. Nunzi, A. Pandey, N. Unni
Cellules Solaires Photovoltaïques Plastiques,POMA – CNRS, Université d’Angers
50’
• Transistors Mémoires
• Transistors ambipolaires
![Page 2: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/2.jpg)
2ERTERT CNFRS/URSI Journées Scientifiques 2007
Organic Field Effect Transistors
• Low temperature processing• Compatibility with plastic substrates
Applications : Active matrix displays Low cost logic circuits Smart cards
FET Type FeRAM
• Nonvolatile Data Storage
• Nondestructive data readout
• Single Transistor type memory cell
Unni et al., Appl Phys Lett 2004
![Page 3: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/3.jpg)
3ERTERT CNFRS/URSI Journées Scientifiques 2007
P(VDF-TrFE) Pentacene
Pentacene / active material
Polyvinylidene fluoride-Trifluoroethylene / gate insulator
Gold & ITO / contacts
Structure
![Page 4: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/4.jpg)
4ERTERT CNFRS/URSI Journées Scientifiques 2007
Experimental Details
• ITO coated glass slides as substrates
• P(VDF-TrFE) spin coated
• Pentacene evaporated
• Gold source & drain electrodes
• Channel length 120µm
• Channel width 0.5mm
![Page 5: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/5.jpg)
5ERTERT CNFRS/URSI Journées Scientifiques 2007
How does a MISFET works ?
Dielectric-Gate Voltage CB
VB
EF
Semiconductor
Energy
D S
Vds
Vgs
G
![Page 6: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/6.jpg)
6ERTERT CNFRS/URSI Journées Scientifiques 2007
0 -10 -20 -30 -40 -50
0.0
-0.1
-0.2
-0.3
-0.4
-0.5
Vg
(V)
-50
-40
-30-20-100
I d (
)
Vd(V)
Transistor characteristics of a pentacene FET with P(VDF-TrFE) as gate insulator
![Page 7: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/7.jpg)
7ERTERT CNFRS/URSI Journées Scientifiques 2007
0 10 20 30 40 50
0.0001
0.0002
0.0003
0.0004
0.0005
0.0006
0.0007
|I d,sa
t|0.5 (
A0.
5 )
-Vg (V)
|Id,sat|0.5 vs.Vg
µFET = 2.6 x 10-3 cm2s-1V-1
Threshold voltage = -17.4 V
2, )(
2 tgFEisatd VVCL
WI
![Page 8: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/8.jpg)
8ERTERT CNFRS/URSI Journées Scientifiques 2007
How does a MFS-FET works ?
FerroelectricVg = 0 CB
VB
EF
Semiconductor
Energy
D S
Vds
Vgs=0
G+ + + +
![Page 9: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/9.jpg)
9ERTERT CNFRS/URSI Journées Scientifiques 2007
0 -2 -4 -6 -8 -10 -12 -140.05
0.00
-0.05
-0.10
-0.15
-0.20
-0.25
-0.30
I d (A
)
Vd (V)
Before writing After writing
Comparison of drain currents at Vg = 0, before and after writing with –50 V
ON
OFF
![Page 10: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/10.jpg)
10ERTERT CNFRS/URSI Journées Scientifiques 2007
FET ambipolaire
![Page 11: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/11.jpg)
11ERTERT CNFRS/URSI Journées Scientifiques 2007
0.0
-0.5
-1.0
-1.5
-2.0 (a)
VG (
V)
-12-9
-6
-3
0
I D (A
)
0 -5 -10 -15 -20 -25 -30
0
-2
-4
-6
-8
-10
-12
-14
(b)
VG (
V)
-12-15-18-21
-24
-27
-30
I D (A
)
VD (V)
Fct. Canal P
0
2
4
6
8 (a)
VG (
V)
15129
6
3
0
I D (
A)
0 5 10 15 20 25 30
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4(b)
VG (
V)
1518
21
24
27
I D (A
)V
D (V)
Fct. Canal N
![Page 12: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/12.jpg)
12ERTERT CNFRS/URSI Journées Scientifiques 2007
-30 -20 -10 0 10 20 300.0000
0.0005
0.0010
0.0015
0.0020
0.0025
0.0030
0.0035
0.0040
n- channelp- channel
|I D, s
at|0.
5 (A
)0.5
VG (V)
µe= 10-2 cm2V-1s-1
(1,2.10-2 / pure)
µh= 9.10-2 cm2V-1s-1
Chem Phys Lett 2006
Caractéristiques ON/OFF
![Page 13: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/13.jpg)
13ERTERT CNFRS/URSI Journées Scientifiques 2007
Composants plastiques souples, stables et reproductibles Composants plastiques souples, stables et reproductibles
Cellules PV souples 2-3% (APL 2006)
![Page 14: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/14.jpg)
14ERTERT CNFRS/URSI Journées Scientifiques 2007
TITK, Rudostadt
![Page 15: 1 ERT CNFRS/URSI Journées Scientifiques 2007 Transistors organiques ambipolaires J.-M. Nunzi, A. Pandey, N. Unni Cellules Solaires Photovoltaïques Plastiques,](https://reader035.vdocuments.pub/reader035/viewer/2022062619/5519bbe25503465b578b49d1/html5/thumbnails/15.jpg)
15ERTERT CNFRS/URSI Journées Scientifiques 2007
Fraunhofer, IZM, Munich