The morphology in organic photovoltaics plays a key role in determining the device efficiency. We propose a method to fabricate bilayer devices with controlled nanostructured interfaces by combining nanoimprinting and lamination techniques. This technique allows us to achieve a network structure of donor-acceptor material with a 80nm periodicity and 40nm width. These structures have an abrupt interface between the donor and acceptor materials and show an increased effective interfacial area and photovoltaic performance compared to bilayer solar cells. In contrast to blend films, they will allow an in depth analysis of the influence of morphology on interfacial physical processes.

1.
G.
Yu
,
J.
Gao
,
J. C.
Hummelen
,
F.
Wudl
, and
A. J.
Heeger
,
Science
270
,
1789
(
1995
).
2.
J. J. M.
Halls
,
C. A.
Walsh
,
N. C.
Greenham
,
E. A.
Marseglia
,
R. H.
Friend
,
S. C.
Moratti
, and
A. B.
Holmes
,
Nature (London)
376
,
498
(
1995
).
3.
S. H.
Park
,
A.
Roy
,
S.
Beaupre
,
S.
Cho
,
N.
Coates
,
J. S.
Moon
,
D.
Moses
,
M.
Leclerc
,
K.
Lee
, and
A. J.
Heeger
,
Nat. Photonics
3
,
297
(
2009
).
4.
J. Y.
Kim
,
K.
Lee
,
N. E.
Coates
,
D.
Moses
,
T. -Q.
Nguyen
,
M.
Dante
, and
A. J.
Heeger
,
Science
317
,
222
(
2007
).
5.
J. A.
Barker
,
C. M.
Ramsdale
, and
N. C.
Greenham
,
Phys. Rev. B
67
,
075205
(
2003
).
6.
T. A. M.
Ferenczi
,
J.
Nelson
,
C.
Belton
,
A. M.
Ballantyne
,
M.
Campoy-Quiles
,
F. M.
Braun
, and
D. D. C.
Bradley
,
J. Phys.: Condens. Matter
20
,
475203
(
2008
).
7.
L. C.
Chen
,
D.
Godovsky
,
O.
Inganäs
,
J. C.
Hummelen
,
R. A. J.
Janssens
,
M.
Svensson
, and
M. R.
Andersson
,
Adv. Mater.
12
,
1367
(
2000
).
8.
For further informations please refer to: http://www.obducat.com/.
9.
Z.
Song
,
B. H.
You
,
J.
Lee
, and
S.
Park
,
Microsyst. Technol.
14
,
1593
(
2008
).
10.
G.
Scarpa
,
A.
Abdellah
,
A.
Exner
,
S.
Harrer
,
G. P.
Blanco
,
W.
Wiedemann
,
L.
Schmidt-Mende
, and
P.
Lugli
,
IEEE Trans. Nanotechnol.
(to be published).
11.
K. P.
Musselman
,
G. J.
Mulholland
,
A. P.
Robinson
,
L.
Schmidt-Mende
, and
J. L.
MacManus-Driscoll
,
Adv. Mater.
20
,
4470
(
2008
).
12.
P.
Müller-Buschbaum
,
Anal. Bioanal. Chem.
376
,
3
(
2003
).
13.
R.
Lazzari
,
J. Appl. Crystallogr.
35
,
406
(
2002
).
14.
C. R.
McNeill
,
A.
Abrusci
,
I.
Hwang
,
M. A.
Ruderer
,
P.
Müller-Buschbaum
, and
N. C.
Greenham
,
Adv. Funct. Mater.
19
,
3103
(
2009
).
15.
G.
Kaune
,
M. A.
Ruderer
,
E.
Metwalli
,
W.
Wang
,
S.
Couet
,
K.
Schlage
,
R.
Röhlsberger
,
S. V.
Roth
, and
P.
Müller-Buschbaum
,
ACS Appl. Mater. Interfaces
1
,
353
(
2009
).
16.
C. J.
Brabec
,
A.
Cravino
,
D.
Meissner
,
N. S.
Sariciftci
,
M. T.
Rispens
,
L.
Sanchez
,
J. C.
Hummelen
, and
T.
Fromherz
,
Thin Film Solids
403–404
,
368
(
2002
).
17.
A. L.
Ayzner
,
C. J.
Tassone
,
S. H.
Tolbert
, and
B. J.
Schwartz
,
J. Phys. Chem. C
113
,
20050
(
2009
).
18.
O. V.
Mikhnenko
,
F.
Cordella
,
A. B.
Sieval
,
J. C.
Hummelen
,
P. W. M.
Blom
, and
M. A.
Loi
,
J. Phys. Chem. B
112
,
11601
(
2008
).
19.
J. E.
Kroeze
,
T. J.
Savenije
,
M. J. W.
Vermeulen
, and
J. M.
Warman
,
J. Phys. Chem. B
107
,
7696
(
2003
).
20.
M.
Aryal
,
K.
Trivedi
, and
W.
Hu
,
ACS Nano
3
,
3085
(
2009
).
21.
C.
Groves
,
R. A.
Marsh
, and
N. C.
Greenham
,
J. Chem. Phys.
129
,
114903
(
2008
).
You do not currently have access to this content.