The authors show that source and drain electrodes made of the title metallic organic charge-transfer salt (tetrathiafulvalene)(tetracyanoquinodimethane) [(TTF)(TCNQ)] result in drastic reduction of contact resistance in organic thin-film transistors (TFTs). The contact resistance is estimated by the variable gate-length transfer-line method. Pentacene TFTs with the organic electrodes show smaller contact resistance and larger overall mobility by more than one order than those of bottom-contact Au transistors. The performance is comparable to that of top-contact Au transistors, indicating that (TTF)(TCNQ) is an excellent electrode material for bottom-contact transistors.

2.
H. E.
Katz
and
S. L.
Gilat
,
Acc. Chem. Res.
34
,
359
(
2001
).
3.
C. D.
Dimitrakopoulos
and
P. R. L.
Malenfant
,
Adv. Mater. (Weinheim, Ger.)
14
,
99
(
2002
).
4.
C. R.
Kagan
and
P.
Andy
,
Thin-Film Transistors
(
Dekker
, New York,
2003
).
5.
K. P.
Puntambekar
,
P. V.
Pesavento
, and
C. D.
Frisbie
,
Appl. Phys. Lett.
83
,
5539
(
2003
).
6.
M.
Nakamura
,
N.
Goto
,
N.
Ohashi
,
M.
Sakai
, and
K.
Kudo
,
Appl. Phys. Lett.
86
,
122112
(
2005
).
7.
P. V.
Pesavento
,
R. J.
Chesterfield
,
C. R.
Newman
, and
C. D.
Frisbie
,
J. Appl. Phys.
96
,
7312
(
2004
).
8.
I.
Yagi
,
K.
Tsukagoshi
, and
Y.
Aoyagi
,
Appl. Phys. Lett.
84
,
813
(
2004
).
9.
P. V.
Necliudov
,
M. S.
Shur
,
D. J.
Gundlach
, and
T. N.
Jackson
,
Solid-State Electron.
47
,
259
(
2002
).
10.
H.
Klauk
,
G.
Schmid
,
W.
Radlik
,
W.
Weber
,
L.
Zhou
,
C. D.
Sheraw
,
J. A.
Nichols
, and
T. N.
Jackson
,
Solid-State Electron.
47
,
297
(
2002
).
11.
M.
Lefenfeld
,
G.
Blanchet
, and
J. A.
Rogers
,
Adv. Mater. (Weinheim, Ger.)
15
,
1188
(
2003
).
12.
G.
Blanchet
,
C. R.
Fincher
,
M.
Lefenfeld
, and
J. A.
Rogers
,
Appl. Phys. Lett.
84
,
296
(
2004
).
13.
K. S.
Lee
,
T. J.
Smith
,
K. C.
Dickey
,
J. E.
Yoo
,
K. J.
Stevenson
, and
Y.-L.
Loo
,
Adv. Funct. Mater.
16
,
2409
(
2006
).
14.
Y.
Takahashi
,
T.
Hasegawa
,
Y.
Abe
,
Y.
Tokura
,
K.
Nishimura
, and
G.
Saito
,
Appl. Phys. Lett.
86
,
063504
(
2005
).
15.
Y.
Takahashi
,
T.
Hasegawa
,
Y.
Abe
,
Y.
Tokura
, and
G.
Saito
,
Appl. Phys. Lett.
88
,
073504
(
2006
).
16.
M.
Hiraoka
,
T.
Hasegawa
,
W.
Abe
,
T.
Yamada
,
Y.
Tokura
,
H.
Yamochi
,
G.
Saito
,
T.
Akutagawa
, and
T.
Nakamura
,
Appl. Phys. Lett.
89
,
173504
(
2006
).
17.
G. A.
Thomas
,
D. E.
Schafer
,
F.
Wudl
,
P. M.
Horn
,
D.
Rimai
,
J. W.
Cook
,
D. A.
Glocker
,
M. J.
Skove
,
C. W.
Chu
,
R. P.
Groff
,
J. L.
Gillson
,
R. C.
Wheland
,
L. R.
Melby
,
M. B.
Salamon
,
R. A.
Craven
,
G.
De Pasquali
,
A. N.
Bloch
,
D. O.
Cowan
,
V. V.
Walatka
,
R. E.
Pyle
,
R.
Gemmer
,
T. O.
Poehler
,
G. R.
Johnson
,
M. G.
Miles
,
J. D.
Wilson
,
P. P.
Ferraris
,
T. F.
Finnegan
,
R. J.
Warmack
,
V. F.
Raaen
, and
D.
Jerome
,
Phys. Rev. B
13
,
5105
(
1976
).
18.
M. J.
Cohen
,
L. B.
Coleman
,
A. F.
Garito
, and
A. J.
Heeger
,
Phys. Rev. B
10
,
1298
(
1974
).
19.
G.
Schukat
,
A. M.
Richter
, and
E.
Fanghänel
,
Sulfur Rep.
7
,
155
(
1987
).
20.
P. W.
Kenny
,
T. H.
Jozefiak
, and
L. L.
Miller
,
J. Org. Chem.
53
,
5007
(
1988
).
21.
H.
Meng
,
L.
Zheng
,
A. J.
Lovinger
,
Bo-Cheng
Wand
,
P. G. V.
Patten
, and
Z.
Bao
,
Chem. Mater.
15
,
1778
(
2003
).
22.
H.
Wada
,
T.
Taguchi
,
B.
Noda
,
T.
Kambayashi
,
T.
Mori
,
K.
Ishikawa
, and
H.
Takezoe
, in
Multifunctional Conducting Molecular Materials
, edited by
G.
Saito
,
F.
Wudl
,
R. C.
Haddon
,
K.
Tanigaki
,
T.
Eoki
,
H. E.
Katz
, and
M.
Maesato
(
RSC
, Cambridge,
2007
), p.
290
.
You do not currently have access to this content.