Supporting Information

Highly stable semi-transparent MAPbI3 perovskite

solar cells with operational output for 4000 hours

M. Bodiul Islam,†,‡,§ M. Yanagida,† Y. Shirai,*,† Y. Nabetani‡ and K. Miyano†

†Global Research Center for Environment and Energy based on Nanomaterials Science (GREEN),

National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan

‡ Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11

Takeda, Kofu, Yamanashi 400-8511, Japan

§ Department of Glass and Ceramic Engineering, Rajshahi University of Engineering & Technology,

Rajshahi-6204, Bangladesh

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Table S1 Summary of the studies on the operational stability of perovskite solar cells to compare with present

work.

Device Structure PCE (%)

Max. process temp. (C)

Stability Under ContinuousIllumination

ReferenceTime(h)

Temp.(C)

Retained Efficiency

( %)FTO/ meso-TiO2 + CH3NH3PbI3 /

Spiro-OMeTAD/Au 14.1 500 500 45 80 Nature. 2013, 499, 316.

FTO/ compact-TiO2/ Al2O3+ CH3NH3PbI3-

xClx /Spiro-OMeTAD/Au 12 500 1000 40 50 Nat. Commun. 2013, 4, 2885.

FTO/ compact-TiO2/meso-TiO2+CH3NH3PbI3-xClx /Spiro-OMeTAD/Au 5.9 480 335 40 60 Phys. Chem. Chem. Phys. 2014, 3918.

TiO2/(Meso-TiO2/ZrO2) +(5-AVA)xMA1-xPbI3/porous Carbon 12.8 450 1008 RT ~100 Science. 2014, 345, 295.

FTO/NiMgLiO/MAPbI3/PCBM/Ti(Nb)Ox/Ag 15 500 1000 50 90 Science. 2015, 350, 944.

FTO/ compact-TiO2/ CH3NH3PbI3-xClx /Spiro-OMeTAD/Ag ~12 450 120 85 40 J. Mater. Chem. A. 2015, 3, 8139.

FTO/ compact-TiO2/ Al2O3 +CH3NH3PbI3-

xClx /Spiro-OMeTAD/Au 13.1 500 350 RT 95 J. Phys. Chem. Lett. 2015, 6, 432.

FTO/ compact-TiO2/meso-TiO2 +CH3NH3PbI3-xClx /Spiro-OMeTAD/Au 11.1 470 360 RT 20 J. Mater. Chem. A. 2015, 3, 9194.

FTO/compact-TiO2/FA0.9Cs0.1PbI3/Spiro-OMeTAD/Ag 16.5 500 220 65 70 Adv. Energy Mater. 2015, 5, 1501310.

ITO/PEDOT:PSS/2D-Perovskite/PCBM/Al 12.5 150 2,250 RT ~100 Nature. 2016, 536, 312.

FTO/ compact-TiO2/meso-TiO2 + Cs5(MA0.17FA0.83)95Pb(I0.83Br0.17)3/

Spiro-OMeTAD/Au21.1 450 250 RT 85 Energy Environ. Sci. 2016, 9, 1989.

ITO/PEDOT/MAPbI3/PCBM/AZO/ITO 12.3 135 124 100 80 Adv. Mater. 2016, 28, 3937.

FTO/NiO/MAPbI3/PCBM/Au 8 400 300 45 64 J. Phys. Chem. C. 2016, 120, 27840.

FTO/ TiO2/MAPbI3/Spiro-OMeTAD/ MoO3/Al 14.8 450 144 85 85 ChemSusChem. 2016, 9, 2597.

FTO/ compact-TiO2/meso-TiO2 +FAPbBr3/Spiro-OMeTAD/Au 8.2 450 150 RT, 60 95, 80 Nano Lett. 2016, 16, 7155.

FTO/compact-TiO2/meso-TiO2 + MAxFA1-xPb(IyBr1-y)3/Spiro-OMeTAD/Au

18.7 450 Outdoor3 months 11~35 ~100 Science. 2016, 354, 203.

FTO/compact-TiO2/meso-TiO2 + Rb5(Cs5(MA0.17FA0.83)95)95Pb(I0.83Br0.17)3/

Spiro-OMeTAD/Au21.6 450 500 85 95 Science. 2016, 354, 206.

ITO/TiO2-Cl/Cs0.05FA0.81MA0.14PbI2.55Br0.45/Spiro-MeTAD/Au 20.1 150 500 RT 90 Science. 2017, 355, 722.

Glass/FTO/LBSO/MAPbI3/NiO/FTO/glass 13.4 280 1000 25 93 Science. 2017, 356, 167.

ITO/NiO/Cs0.17FA0.83Pb(Br0.17I0.83)3(CsFa)/LiF/PCBM/SnO2/ZTO/ITO/LiF/Ag 14.5 300 1000 35 ~100 Nature Energy. 2017, 2, 17009.

ITO/NiOx/MAPbI3/PCBM/AZO/Ag 15.2 100 1000 85 73 ACS Omega. 2017, 2, 2291.

FTO/c-TiO2/TiO2/ 11.9 450 10,000 55 ~100 Nat. Commun. 2017,

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(meso-TiO2/ZrO2)+ 2D/3D Perovskites/Carbon DOI: 10.1038/ncomms15684.FTO/SnO2/C60/BA0.09(FA0.83Cs0.17)0.91Pb

(I0.6Br0.4)3/Spiro-OMeTAD/Au 17.2 180 ~4000 50~60 ~80 Nat. Energy. 2017, 2, 17135.

FTO/c-TiO2/mp-TiO2/MA1-xGuaxPbI3/Spiro-OMeTAD/Au 19.0 500 1100 60 ~80 Nat. Energy. 2017, 2, 972

ITO/SnO2/(FA0.79MA0.16Cs0.05)0.97Pb(I0.84Br0.16)2.97/EH44/MoOx/Al 18.5 150 1000 30 94 Nat. Energy. 2018, 3, 68.

ITO/NiOx/MAPbI3/PCBM/AZO/ITO 12.8 100 4500 30 ~100 Present work

Semitransparent solar cell device

Table S1. Statistics of device parameters. Avg: average, Std: standard deviation.

Opaque

devicesNiOx HTL PTAA HTL

JSC

(mAcm-2)

VOC

(V)FF

(%)

JSC

(mAcm-2)

VOC

(V)FF

(%)

Avg 19.86 1.01 0.68 14.76 20.50 1.08 0.77 17.23

Std 0.85 0.02 0.02 0.39 0.42 0.01 0.01 0.57

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Fig. S1 Photograph showing the glass encapsulation of solar cells.

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Sealing Glass

Fig. S2 Transmission spectra of the sputtered ITO layers with different thickness.

Fig. S3 Histogram of the opaque devices with NiOx (red) and PTAA (green) HTL.

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Fig. S4 Absorption spectra of PTAA (~25nm) and NiOx (~70nm) HTLs.

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0 200 400 600 800 100002468

1012

Powe

r (mW

/cm̂

2)

Power (mW/ cm2) J max (mA/cm2) M.P. Point (V)

Time (h)

J max M.P. Point

13.5

14.0

14.5

15.0

15.5

16.0

0.68

0.70

0.72

0.74

0.76

0.78

0.80

Fig. S5 Long-term stability test of the semitransparent device with NiOx HTL under 1 SUN. The

device was kept at MPPT condition at constant temperature (~30 ).℃

Fig.S6 Long-term stability test of the semitransparent device with NiOx HTL under 1 SUN. The

device was kept at MPPT condition at various heat stresses in temperature controlled oven.

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