simultaneously harvesting solar and rain energies ... · yingli wang, jialong duan, yanyan duan,...
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Interfacial Engineering of Hybridized Solar Cells for
Simultaneously Harvesting Solar and Rain Energies
Yingli Wang, Jialong Duan, Yanyan Duan, Yuanyuan Zhao, Zhibin Pang, Benlin He and Qunwei
Tang*
Institute of Materials Science and engineering, Ocean University China, Qingdao 266100, P. R.
China.
*E-mail address: [email protected]
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A.This journal is © The Royal Society of Chemistry 2017
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Supplementary tables
Table S1 The EIS parameters for the photovoltaics.
CEs Rs (Ω cm2) Rct1 (Ω cm2) Rct2 (Ω cm2)
PANi 0.63 1.38 22.01
PANi-graphene 0.61 0.72 15.45
PANi-graphene/PtCo 0.42 0.71 9.58
PANi-graphene/PtCo|LPPs 0.16 0.37 6.77
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Table S2 The composition of the real rain collected in Qingdao of China.
KCl NaCl NaNO3 Na2SO4 (NH4)2SO4 MgCl2 CaCl2 CaSO4 Na2CO3
Concentration
(mg L-1)
4.10 2.05 8.33 1.42 13.73 32.78 47.90 34.43 10.60
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Supplementary figures
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Sample numble
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-2)
V oc (V
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Fig. S1 The random photovoltaic parameters for (a) PANi, (b) PANi-graphene and (c) PANi-
graphene/PtCo CEs tailored traditional DSSC under the simulated sunlight (AM 1.5).
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0 10 20 30 400
10
20
30
40
Rs
CPE2
Rct2 WRct1
CPE1
Rs
CPE2
Rct2 WRct1
CPE1
-Z' (
ohm
cm
2 )
Z' (ohm cm2)
PANi-graphene/PtCo|LPPs PANi-graphene/PtCoPANi-graphenePANi
Fig. S2 The Nyquist EIS plots for photovoltaics. Rs: sheet resistance, Rct1: charge-transfer
resistance at counter electrode/electrolyte, Rct2: charge-transfer resistance at the
TiO2/dye/electrolyte interface, W: Nernst diffusion impedance corresponding to the diffusion
resistance of I-/I3- redox species, CPE1 and CPE2 are constant phase elements. (Table S1).
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-0.6 0.0 0.6 1.2-0.02
-0.01
0.00
0.01
0.02
Potential (V)
Red2: 3I2+2e=2I3-
Red1: I3-+2e=3I-
Ox2: 2I3--2e=3I2
Ox1: 3I--2e=I3-
Curre
nt d
ensit
y (A
cm
-2)
PANi PANi-graphene PANi-graphene/alloy
Fig. S3 CV curves of PANi, PANi-graphene and PANi-graphene/PtCo CEs recorded in
liquid electrolyte at a scan rate of 50 mV s-1.
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-1.0 -0.5 0.0 0.5 1.0-0.10
-0.05
0.00
0.05
0.10
PANi-graphene/PtCo, without rainwater PANi-graphene/PtCo, with rainwater
Cur
rent
(A)
Voltage (V)
PANi, without rainwater PANi, with rainwater PANi-graphene, without rainwater PANi-graphene, with rainwater
Fig. S4 The ohmic resistances recorded on PANi, PANi-graphene or PANi-graphene/PtCo
alloy tailored solar cells with and without simulated rainwater.
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0 200 400 600 800 10000
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200 210 220 230 240 2500
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Curre
nt (A
)Time (s)
Curre
nt (A)
Time (s)
a
0 300 600 900 12000
50
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20406080
100120140160
Vol
tage
(V
)
Time (s)
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tage
(V
)
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b
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tage
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tage
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f
Fig. S5 The long-term stability of current and voltage outputs by dropping simulated
rainwater onto (a)&(b) PANi, (c)&(d) PANi-graphene, or (e)&(f) PANi-graphene/PtCo
tailored all-weather solar cells.
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Fig. S6 Cross-sectional SEM image of green-emitting TiO2/LPP photoanode.
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Sample numbleFF
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J sc (m
A cm
-2)
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)
(%
)
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Sample numble
FF (%
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J sc (m
A cm
-2)
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(%
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Sample numble
FF (%
)
J sc (m
A cm
-2)
V oc (V
)
(%
)
Fig. S7 The random photovoltaic parameters for (a) PANi, (b) PANi-graphene and (c) PANi-
graphene/PtCo CEs tailored hybridized solar cells with green-emitting m-TiO2/LPP
photoanodes under the simulated sunlight (AM 1.5).
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-2)
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(%
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Sample numble
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Sample numble
FF (%
)
J sc (m
A cm
-2)
Voc
(V)
(%
)
Fig. S8 The random photovoltaic parameters for (a) PANi, (b) PANi-graphene and (c) PANi-
graphene/PtCo CEs tailored hybridized solar cells with green-emitting m-TiO2/LPP photoanodes in
the dark condition.
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IPC
E (%
)
Wavelength (nm)
With LPPs Without LPPs
Fig. S9 IPCE plots of the solar cells with and without LPP phosphors.
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0 50 100 150 200 250-0.1
0.0
0.1
0.2
PANi-graphene/PtCo CE, without LPPs PANi-graphene/PtCo CE, with LPPs
Time (s)
Cur
rent
den
sity
(mA
cm
-2)
Fig. S10 The magnified on-off switches of PANi-graphene/PtCo alloy CE tailored hybridized
solar cell and traditional solar cell.