High-Performance CH3NH3PbI3 Inverted Planar Perovskite Solar

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Supporting Information. High-Performance CH3NH3PbI3 Inverted Planar. Perovskite Solar Cells with Fill Factor Over 83% via Excess Organic/Inorganic Halide.
Supporting Information

High-Performance CH3NH3PbI3 Inverted Planar Perovskite Solar Cells with Fill Factor Over 83% via Excess Organic/Inorganic Halide Muhammad Jahandar,†,‡ Nasir Khan,‡,§ Hang Ken Lee,† Sang Kyu Lee,†,‡ Won Suk Shin,†,‡ Jong-Cheol Lee,†,‡ Chang Eun Song*,‡, § and Sang-Jin Moon*,†,‡ †

Advanced Materials Division, Korea Research Institute of Chemical Technology (KRICT),

141 Gajeongro, Yuseong, Daejeon 34114, Republic of Korea. ‡

Advanced Materials and Chemical Engineering, University of Science and Technology

(UST), 217 Gajeongro, Yuseong, Daejeon 34113, Republic of Korea. §

Center for Solar Energy Materials, Korea Research Institute of Chemical Technology

(KRICT), 141 Gajeongro, Yuseong, Daejeon 34114, Republic of Korea.

Corresponding Author *E-mail: [email protected], *E-mail: [email protected]

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Figure S1. Atomic force microscope (AFM) images of the control and of the excess organic/inorganic halide incorporated MAPbI3 perovskite films.

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Figure S2. GIWAXS data azimuthally integrated around q = 0.98 Å-1 showing preferential orientation for control and excess organic/inorganic halide incorporated MAPbI3 inverted planar perovskite solar cells.

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Figure S3. J-V characteristics of the control and of the excess organic/inorganic halide incorporated MAPbI3 inverted planar perovskite solar cells.

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Table S1. Summary of device performance of the control and of the excess organic/inorganic halide incorporated MAPbI3 inverted planar perovskite solar cells.

Perovskite

VOC (V)

JSC (mA/cm2)

FF (%)

η (%)

MAPbI3

0.943

17.92

76.77

12.97

MAPbI3+MAI (0.025M)

0.960

18.78

79.68

14.37

MAPbI3+MAI (0.050M)

0.964

18.64

81.47

14.65

MAPbI3+MAI (0.075M)

0.954

18.61

81.14

14.41

MAPbI3+MAI (0.100M)

0.951

18.04

80.79

13.86

MAPbI3+FAI (0.025M)

0.966

18.65

80.55

14.52

MAPbI3+FAI (0.050M)

0.975

20.49

83.84

16.74

MAPbI3+FAI (0.075M)

0.973

19.21

81.92

15.31

MAPbI3+FAI (0.100M)

0.985

19.29

80.36

15.26

MAPbI3+CsI (0.025M)

1.010

19.17

82.29

15.93

MAPbI3+CsI (0.050M)

1.037

20.60

83.86

17.92

MAPbI3+CsI (0.075M)

1.036

19.26

82.70

16.50

MAPbI3+CsI (0.100M)

1.011

19.52

81.35

16.04

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Figure S4. J-V characteristics of the (a) control and (b-d) excess organic/inorganic halide incorporating MAPbI3 inverted planar perovskite solar cells with respect to change in light intensity.

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Figure S5. Steady-state photoluminescence (PL) spectra of the control and of the excess organic/inorganic halide incorporated MAPbI3 perovskite films on glass substrate.

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Figure S6. 1/C2 versus applied voltage graph of the control and of the excess organic/inorganic halide incorporated MAPbI3 perovskite devices.

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Figure S7. The J-V curves of inverted (a) MAPbI3 and (b-d) excess organic/inorganic halide incorporated MAPbI3 perovskite devices with respect to forward and reverse scan direction scanned with different delay time (100-500 ms per 0.01 V) under forward and reverse scan direction.

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Figure S8. Steady-state current density and efficiency of (a) MAPbI3 and (b-d) excess organic/inorganic halide incorporated MAPbI3 perovskite devices under continuous light illumination.

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