Electronic Supplementary Material (ESI) for Energy & Environmental Science.
This journal is © The Royal Society of Chemistry 2015
Electronic Supplementary Information
18.1 % hysteresis-less inverted CH3NH3PbI3 planar
perovskite hybrid solar cells
Jin Hyuck Heo1, Hye Ji Han1, Dasom Kim2, Tae Kyu Ahn2, Sang Hyuk Im1,*
Table S1. Fitting parameter for the time-resolved photoluminescent (TRPL) decay curves of an
FTO/TiO2/MAPbI3 film and a glass/MAPbI3/PCBM film.
Sample
A1(%)
τ1(ns)
A2(%)
τ2(ns)
A3(%)
τ3(ns)
τavg(ns)
TiO2
56.98
0.2822
38.96
3.138
4.05
13.741
1.9400
PCBM
55.79
0.2138
41.71
2.3648
2.5
6.86
1.2770
 avg   Ai i , where Ai  1
i
1.0
▼MAPbI3
▼
◆ITO
Intensity (a.u.)
0.8
★PEDOT:PSS
0.6
0.4
▼
0.2
0.0
10
▼
15
◆
20
▼
★
25
30
2(degree)
Fig. S1. XRD pattern of MAPbI3/PEDOT:PSS/ITO substrate.
i
10
PCBM
TiO2
Counts
8
6
4
2
0
14
15
16
17
18
19
 (%)
Fig. S2. The efficiency deviation of 20 samples of inverted (PCMB) and normal (TiO2)
MAPbI3 planar perovskite hybrid solar cells.
1
Current (A)
0.1
0.01
1E-3
1E-4
1E-5
~1
1E-6
0.01
0.1
1
Bias Voltage (V)
Fig. S3. Log-log plot of I-V curve for TiO2 electron conductor.
40
(a)
2
(c)
0
-Im Z (k
-Im Z (k)
20
-20
0
-2
-40
-4
-60
0
50
100
150
-6
-4
Re Z (k)
60
40
(b)
2
-Im Z (k
20
-Im Z (k)
-2
0
-2
0
Re Z (k
0
-20
-40
-60
(d)
0
-2
-4
-80
0
50
100
Re Z (k)
150
200
-6
-4
Re Z (k
Fig. S4. IMPS (a, b) and IMVS (c, d) of inverted (a, c) and normal (b, d) MAPbI3 planar
perovskite hybrid solar cell.