Abstract
Infrared (IR) and x-ray photoemission spectroscopy (XPS) studies have been made on heterogeneously iodine-doped polyphenylacetylene (PPA) polymer films. Similarities and differences between the doping processes (heterogeneous and homogeneous) are presented. Results point to a surface doping process in the heterogeneously doped films vs. a bulk process in the homogeneously doped materials (doped in solution). The counter anion moiety in the films appears to be the polyiodide I5− ion, as contrasted to the bulk powder (homogeneously doped) polymer in which the species of I2, I3− in the presence of a predominance of I5− ion coexist.
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References
1.Handbook of Conducting Polymers ,
Skotheim
T. A.
Ed. (Marcel Dekker , New York , 1986 ).
2.
Leclerc
M.
Diaz
F. M.
and
Wegner
G
, Makromol. Chem. 190 , 3105 (1989 ).
3.
Feldhues
M.
Kaμpf
G.
Litterer
H.
Mecklenburg
T.
and
Wegener
P
, Synth. Met. 28 , C487 (1989 ).
4.
Rühe
J.
Ezquerra
T.
and
Wegner
G
, Makromol. Chem. Rapid Commun. 10 , 103 (1989 ).
5.
Polzonetti
G.
Furlani
A.
Russo
M. V.
Camus
A. M.
and
Marsich
N
, J. Electron Spectr. Phenom. 52 , 581 (1990 ).
6.
Ferraro
J. R.
Martin
K.
Furlani
A.
and
Russo
M. V
, Appl. Spectrosc. 38 , 267 (1984 ).
7.
Furlani
A.
Russo
M. V.
Polzonetti
G.
Wang
H. H.
and
Ferraro
J. R
, Appl. Spectrosc. 44 , 331 (1990 ).
8.
Salaneck
W. R.
Thomas
M. R.
Bigelow
R. W.
Duke
C. B.
Plummer
E. W.
Heeger
A. J.
and
MacDiarmid
A. G
, J. Chem. Phys. 72 , 3674 (1980 ).
9.
Furlani
A.
Napoletano
C.
and
Russo
M. V
, J. Polymer Sci.: Part A 27 , 75 (1989 ).
10.
Baschenko
O. A.
Tyzykhov
M. A.
Nefedov
V. I.
Polzonetti
G.
Russo
M. V.
and
Furlani
A
, J. Electron Spectr. Relat. Phenom., in press , (1990 ).
11.
Rabolt
J. F.
Clarke
T. C.
and
Street
G. B
, J. Chem. Phys. 71 , 4614 (1979 ).
12.
Fincher
C. R.
Ozaki
M.
Heeger
A. J.
and
MacDiarmid
A. G
, Phys. Rev. B Condens. Matter 19 , 4140 (1979 ).
13.
Tanaka
M.
Watanabe
A.
and
Tanaka
J
, Bull. Chem. Soc. Jpn. C3 , 645 (1980 ).
14.
McClure
M. S.
Liu
L.
Whang
T.
Ratajack
M. T.
Kammerwurf
C. R.
McQuillan
B.
Street
G. S.
and
Clarke
T. C
, J. Electron Mater. 11 , 471 (1982 ).
15.
Mele
E. J.
and
Rice
M. J
, Phys. Rev. Lett. 45 , 926 (1980 ).
16.
Etemad
S.
Pron
A.
Heeger
A. J.
MacDiarmid
A. G.
Mele
E. J.
and
Rice
M. J
, Phys. Rev. B: Condens. Matter 23 , 5137 (1981 ).
17.
Horovitz
B.
, Solid State Commun. 41 , 729 (1982 ).
18.
Zannoni
G.
and
Zerbi
G
, Chem. Phys. Lett. 87 , 50 (1982 ).
19.
Rabolt
J. F.
Clarke
T. C.
and
Street
G. B
, J. Chem. Phys. 73 , 4746 (1982 ).
20.
Harada
I.
Furukawa
Y.
Shirakawa
H.
and
Ikeda
S
, J. Chem. Phys. 73 , 4746 (1980 ).
21.
Harada
I.
Tasumi
M.
Shirakawa
H.
and
Ikeda
S
, Chem. Lett. 1411 (1978 ).
22.
Kornelsen
K.
Eldridge
J. E.
Homes
C. C.
Wang
H.
and
Williams
J. M
, Solid State Commun. 72 , 475 (1989 ).
23.
Ferraro
J. R.
and
Williams
J. M
, Mol. Cryst. Liq. Cryst. 181 , 253 (1990 ).