Photovoltaic performance of the polymer solar cell (PSC) based on poly(3-hexylthiophene) (P3HT) as donor and [6,6]-phenyl--butyric acid methyl ester (PCBM) as acceptor was improved by using the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) modification layer treated by ethanol or 2-propanol. Power conversion efficiency (PCE) of the PSC based on P3HT:PCBM (1:1, w/w) with the 2-propanol-treated PEDOT:PSS modification layer reached 4.74%, in comparison with a PCE of 3.39% for the PSC with the PEDOT:PSS layer without the organic solvent treatment. The enhanced performance of the PSCs is attributed to higher conductivity and optimized surface morphology of the PEDOT:PSS layers treated by the organic solvent.
REFERENCES
1.
G.
Yu
, J.
Gao
, J. C.
Hummelen
, F.
Wudl
, and A. J.
Heeger
, Science
270
, 1789
(1995
).2.
J. W.
Chen
and Y.
Cao
, Acc. Chem. Res.
42
, 1709
(2009
).3.
Y. F.
Li
and Y. P.
Zou
, Adv. Mater. (Weinheim, Ger.)
20
, 2952
(2008
).4.
G.
Li
, V.
Shrotriya
, J. S.
Huang
, Y.
Yao
, T.
Moriarty
, K.
Emery
, and Y.
Yang
, Nature Mater.
4
, 864
(2005
).5.
W. L.
Ma
, C. Y.
Yang
, X.
Gong
, K. H.
Lee
, and A. J.
Heeger
, Adv. Funct. Mater.
15
, 1617
(2005
).6.
Y.
Zhao
, Z. Y.
Xie
, Y.
Qu
, Y. H.
Geng
, and L. X.
Wang
, Appl. Phys. Lett.
90
, 043504
(2007
).7.
F. L.
Zhang
, K. G.
Jespersen
, C.
Bjorstrom
, M.
Svensson
, M. R.
Andersson
, V.
Sundstrom
, K.
Magnusson
, E.
Moons
, A.
Yartsev
, and O.
Inganas
, Adv. Funct. Mater.
16
, 667
(2006
).8.
J.
Peet
, J. Y.
Kim
, N. E.
Coates
, W. L.
Ma
, D.
Moses
, A. J.
Heeger
, and G. C.
Bazan
, Nature Mater.
6
, 497
(2007
).9.
Y. J.
Xia
and J. Y.
Ouyang
, J. Mater. Chem.
21
, 4927
(2011
).10.
T.
Xiao
, W.
Cui
, J.
Anderegg
, J.
Shinar
, and R.
Shinar
, Org. Electron.
12
, 257
(2011
).11.
S. I.
Na
, G.
Wang
, S. S.
Kim
, T. W.
Kim
, S. H.
Oh
, B. K.
Yu
, T.
Lee
, and D. Y.
Kim
, J. Mater. Chem.
19
, 9045
(2009
).12.
K. J.
Kim
, Y. S.
Kim
, W. S.
Kang
, B. H.
Kang
, S. H.
Yeom
, D. E.
Kim
, J. H.
Kim
, and S. W.
Kang
, Sol. Energy Mater. Sol. Cells
94
, 1303
(2010
).13.
D. A.
Rider
, B. J.
Worfolk
, K. D.
Harris
, A.
Lalany
, K.
Shahbazi
, M. D.
Fleischauer
, M. J.
Brett
, and J. M.
Buriak
, Adv. Funct. Mater.
20
, 2404
(2010
).14.
Y. J.
Xia
, H. M.
Zhang
, and J. Y.
Ouyang
, J. Mater. Chem.
20
, 9740
(2010
).15.
Y. J.
Xia
and J. Y.
Ouyang
, Applied Materials &Interfaces.
2
, 474
(2010
).16.
See supplementary material at http://dx.doi.org/10.1063/1.3600665 for detailed fabrication and characterization of the devices.
17.
Y. S.
Hsiao
, W. T.
Whang
, C. P.
Chen
, and Y. C.
Chen
, J. Mater. Chem.
18
, 5948
(2008
).© 2011 American Institute of Physics.
2011
American Institute of Physics
You do not currently have access to this content.
