We quantify the strong dependence of photocurrent on the angle of incidence of light in a dye solar cell (DSC). Under laser illumination the photocurrent increases for large incidence angles. The enhancements are different upon using or not a coupling prism. They are explained with a model including three different angular factors. The observed enhancements up to 25% can be useful for evaluating novel designs of an efficient photon management in DSCs. Even an effective refractive index neff2.0 for the mesoporous titania/electrolyte phase was retrieved from the angle dependent photocurrent.

1.
B.
O’Regan
and
M.
Grätzel
,
Nature (London)
353
,
737
(
1991
).
2.
M.
Grätzel
,
Inorg. Chem.
44
,
6841
(
2005
).
3.
J. R.
Durrant
,
S. A.
Haque
, and
E.
Palomares
,
Coord. Chem. Rev.
248
,
1247
(
2004
).
4.
S.
Kim
,
J. K.
Lee
,
S. O.
Kang
,
J.
Ko
,
J. -H.
Yum
,
S.
Fantacci
,
F.
De Angelis
,
D.
Di Censo
,
M. K.
Nazeeruddin
, and
M.
Grätzel
,
J. Am. Chem. Soc.
128
,
16701
(
2006
).
5.
F.
Inakazu
,
Y.
Noma
,
Y.
Ogomi
, and
S.
Hayase
,
Appl. Phys. Lett.
93
,
093304
(
2008
).
6.
M.
Gorlov
and
L.
Kloo
,
Dalton Trans.
2008
,
2655
.
7.
S.
Hore
,
P.
Nitz
,
C.
Vetter
,
C.
Prahl
,
M.
Niggemann
, and
R.
Kern
,
Chem. Commun. (Cambridge)
2005
,
2011
.
8.
D.
Chen
,
F.
Huang
,
Y. -B.
Cheng
, and
R. A.
Caruso
,
Adv. Mater. (Weinheim, Ger.)
21
,
2206
(
2009
).
9.
Q. F.
Zhang
,
T. P.
Chou
,
B.
Russo
,
S. A.
Jenekhe
, and
G. Z.
Cao
,
Adv. Funct. Mater.
18
,
1654
(
2008
).
10.
11.
S.
Hore
,
C.
Vetter
,
R.
Kern
,
H.
Smit
, and
A.
Hinsch
,
Sol. Energy Mater. Sol. Cells
90
,
1176
(
2006
).
12.
S.
Colodrero
,
A.
Mihi
,
L.
Haggman
,
M.
Ocana
,
G.
Boschloo
,
A.
Hagfeldt
, and
H.
Míguez
,
Adv. Mater. (Weinheim, Ger.)
21
,
764
(
2009
).
13.
C. -H.
Yip
,
Y. -M.
Chiang
, and
C. -C.
Wong
,
J. Phys. Chem. C
112
,
8735
(
2008
).
14.
S.
Rühle
,
S.
Greenwald
,
E.
Koren
, and
A.
Zaban
,
Opt. Express
16
,
21801
(
2008
).
15.
D.
Colonna
,
L.
Dominici
,
D.
D’Ercole
,
A.
Brunetti
,
F.
Michelotti
,
T. M.
Brown
,
A.
Reale
, and
A.
Di Carlo
,
Superlattices Microstruct.
47
,
197
(
2010
).
16.
K.
Tvingstedt
,
S.
Dal Zilio
,
O.
Inganäs
, and
M.
Tormen
,
Opt. Express
16
,
21608
(
2008
).
17.
Y.
Zhou
,
F.
Zhang
,
K.
Tvingstedt
,
W.
Tian
, and
O.
Inganäs
,
Appl. Phys. Lett.
93
,
033302
(
2008
).
18.
K.
Tvingstedt
,
N. -K.
Persson
,
O.
Inganäs
,
A.
Rahachou
, and
I. V.
Zozoulenko
,
Appl. Phys. Lett.
91
,
113514
(
2007
).
19.
K. R.
Catchpole
and
A.
Polman
,
Opt. Express
16
,
21793
(
2008
).
20.
C.
Hägglund
,
M.
Zäch
, and
B.
Kasemo
,
Appl. Phys. Lett.
92
,
013113
(
2008
).
21.
R. A.
Pala
,
J.
White
,
E.
Barnard
,
J.
Liu
, and
M. L.
Brongersma
,
Adv. Mater. (Weinheim, Ger.)
21
,
3504
(
2009
).
22.
E.
Descrovi
,
F.
Giorgis
,
L.
Dominici
, and
F.
Michelotti
,
Opt. Lett.
33
,
243
(
2008
).
23.
G.
Mincuzzi
,
L.
Vesce
,
A.
Reale
,
A.
Di Carlo
, and
T. M.
Brown
,
Appl. Phys. Lett.
95
,
103312
(
2009
).
24.
J. L.
Balenzategui
and
F.
Chenlo
,
Sol. Energy Mater. Sol. Cells
86
,
53
(
2005
).
25.
Hence the same is valid for the whole θa[17°,82°] range, fixed by the experimental setup, which splits into two different θs ranges without (θs[11°,40°]) and with prism (θs[27°,68°]).
26.
T.
Trupke
,
P.
Wrfel
, and
I.
Uhlendorf
,
J. Phys. Chem. B
104
,
11484
(
2000
).
27.
φ=Φ0T/A is the photon flux density over the illuminated titania area and ϕ0=Φ0/A0 the external incident one. φ=ϕ0×T×A0/A.
28.
Under solar illumination, η(θs) may contribute to larger enhancements for specific DSCs.
29.
W.
Kubo
,
A.
Sakamoto
,
T.
Kitamura
,
Y.
Wada
, and
S.
Yanagida
,
J. Photochem. Photobiol., A
164
,
33
(
2004
).
30.
As a comparison, we extract an αN719633nm570cm1 from data in
M.
Yanagida
,
K.
Sayama
,
K.
Kasuga
,
M.
Kurashige
, and
H.
Sugihara
,
J. Photochem. Photobiol., A
182
,
288
(
2006
).
31.
J. J.
Saarinen
,
E. M.
Vartiainen
, and
K. -E.
Peiponen
,
J. Mod. Opt.
53
,
1047
(
2006
).
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