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A bootstrapped inverter incorporating pentacene organic thin-film transistors (OTFTs), with poly(methyl methacrylate) as the gate dielectric, has been designed, fabricated and tested. The inverter uses capacitive coupling and bootstrapping effects, and exhibits superior performance to the normal diode-connected load inverter. The pentacene OTFTs used for the inverter possess a field-effect mobility of 0.32 cm2/V/s, a threshold voltage of −10.0 V, a subthreshold slope of 1.5 V per decade and an on/off current ratio of 2.2×106. The inverter has a 30 µs rise time and a 450 µs fall time, at an operating frequency of 1 kHz and 30 V drive voltage.
References
-
-
1)
-
H. Klauk ,
U. Zschieschang ,
J. Pflaum ,
M. Halik
.
Ultralow-power organic complementary circuits.
Nature
,
15 ,
745 -
748
-
2)
-
M.-H. Yoon ,
H. Yan ,
A. Facchetti ,
T.J. Marks
.
Low-voltage organic field-effect transistors and inverters enabled by ultrathin cross-linked polymers as gate dielectrics.
J. Am. Chem. Soc.
,
29 ,
10388 -
10395
-
3)
-
C. Siol ,
C. Melzer ,
H. von Seggern
.
Electron trapping in pentacene based p- and n-type organic field-effect transistors.
Appl. Phys. Lett.
,
13
-
4)
-
P.F. Baude ,
D.A. Ender ,
M.A. Haase ,
T.W. Kelley ,
D.V. Muyres ,
S.D. Theiss
.
Pentacene-based radio-frequency identification circuitry.
Appl. Phys. Lett.
,
22 ,
3964 -
3966
-
5)
-
S.H. Han ,
S.M. Cho ,
J.H. Kim ,
J.W. Choi ,
J. Jang ,
M.H. Oh
.
Ring oscillator made of organic thin-film transistors produced by self-organised process on plastic substrate.
Appl. Phys. Lett.
,
9
-
6)
-
T. Someya ,
Y. Kato ,
S. Iba ,
T. Sekitani ,
H. Kawaguchi ,
T. Sakurai
.
Integration of organic FETs with organic photodiodes for a large area, flexible, and lightweight sheet image scanners.
IEEE Trans. Electron Devices
,
11 ,
2502 -
2511
-
7)
-
Y. Yun ,
C. Pearson ,
M.C. Petty
.
Pentacene thin film transistors with a poly(methyl methacrylate) gate dielectric: optimisation of device performance.
J. Appl. Phys.
,
3
-
8)
-
H. Klauk ,
M. Halik ,
U. Zschieschang ,
F. Eder ,
G. Schmid ,
C. Dehm
.
Pentacene organic transistors and ring oscillators on glass and on flexible polymeric substrates.
Appl. Phys. Lett.
,
23 ,
4175 -
4177
-
9)
-
M. Ahles ,
R. Schmechel ,
H. von Seggern
.
Complementary inverter based on interface doped pentacene.
Appl. Phys. Lett.
,
11
-
10)
-
I. Yagi ,
N. Hirai ,
Y. Miyamoto
.
A flexible full-color AMOLED display driven by OTFTs.
J. Soc. Inf. Display
,
1 ,
15 -
20
-
11)
-
S.C. Lim ,
S.H. Kim ,
J.B. Koo
.
Hysteresis of pentacene thin-film transistors and inverters with cross-linked poly(4-vinylphenol) gate dielectrics.
Appl. Phys. Lett.
,
17
-
12)
-
Cantatore, E., Meijer, E.J.: `Transistor operation and circuit performance in organic electronics', Proc. 29th European Solid-State Circuits Conf., September 2003, p. 29–36.
-
13)
-
J.B. Chang ,
V. Liu ,
V. Subramanian
.
Printable polythiophene gas sensor array for low-cost electronic noses.
J. Appl. Phys.
,
1
-
14)
-
H. Klauk ,
M. Halik ,
U. Zschieschang ,
G. Schmid ,
W. Radlik ,
W. Weber
.
High-mobility polymer gate dielectric pentacene thin film transistors.
J. Appl. Phys.
,
9 ,
5259 -
5263
-
15)
-
J.B. Koo ,
C.H. Ku ,
J.W. Lim ,
S.H. Kim
.
Novel organic inverters with dual-gate pentacene thin-film transistor.
Org. Electron.
,
552 -
558
-
16)
-
S. De Vusser ,
S. Steudel ,
K. Myny ,
J. Genoe ,
P. Heremansa
.
Low voltage complementary organic inverters.
Appl. Phys. Lett.
,
16
-
17)
-
L. Lee ,
S. Al-Sarawi ,
D. Abbott
.
Dynamic bootstrapped shift register for smart sensor arrays.
Smart Mater. Struct.
,
4 ,
569 -
574
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-cds.2009.0066
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