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Supporting information
Efficient and stable inorganic perovskites solar cells manufactured
by pulsed flash infrared annealing
Sandy Sanchez1, Neururer Christoph2, Bernard Grobety2, Nga Phung3, Ullrich Steiner1, Michael Saliba1*, Antonio Abate3*
1 Adolphe Merkle Institute, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
2 Geoscience Department, University of Fribourg, Chemin du Musée 6, 1700 Fribourg,
Switzerland
3 Helmholtz-Zentrum Berlin für Materialien und Energie, Kekuléstraße 5, 12489 Berlin,
Germany
*Corresponding authors: A.A. antonio.abate@helmholtz-berlin.de; M.S. michael.saliba@unifr.ch
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Contents
EDX ... 3
JV curves for highest iodide content devices ... 4
XRD ... 5
DSC ... 6
SEM images ... 7
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EDX
Figure S1. Energy dispersive x-ray spectroscopy mapping for individual elements and chemical analysis for the CsPbI2Br thin film over FTO glass and TiO2 layers.
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JV curves for highest iodide content devices
Figure S2. JV curves for highest iodide content devices. a) JV forward scan for I 62% / Br 38% halide composition pristine device and after 100h exposed to normal environment condition. b) JV forward scan for I 65% / Br 35% halide composition pristine device and after 100h exposed to normal environment condition. The scan speed of 10 mV/s.
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 5 10 15 J (mA/cm 2 ) V (V) Pristine after 100 h I 62% / Br 38% 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 5 10 15 J (mA/cm 2 ) V (V) Pristine after 100 h I 65% / Br 35% a b
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XRD
Figure S3. XRD pattern for caesium lead halides composition materials.
10 20 30 40 50 60 70 10 20 30 40 50 60 70
24 q
Br100%Intensity (a.u.)
I40%/Br60% I50%/Br50% I60%/Br40% I100%Page 6 of 8
DSC
Figure S4. Differential scan calorimetry for hybrid and all inorganic perovskite powder materials.
40 80 120 160 -20 -10 0 10 20 Heat flow (mW) Temperature (°C) Hybrid CsPb(IBr)3 I60% / Br40% I50% / I50% I40% / I40%
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SEM images
Figure S5. Scanning electron microscope top view images and a histogram of the crystal grain diameter for caesium lead halide films.
2.0 s 2.33 s 2.67 s 3.0 s 3 pulses 9 pulses 11 pulses 20 pulses 23 pulses 26 pulses 14 pulses 17 pulses 24 pulses 25 pulses 7 pulses 5 pulses 10 um 10 um 10 um 10 um 10 um 10 um 10 um 10 um 10 um 10 um 10 um 10 um 5 um 5 um 5 um 5 um 0 4 8 12 0 3 6 9 Count
Grain diameter (um)
0 3 6 0 3 6 9 12 15 18 Count
Grain diameter (um)
0 2 4 0 10 20 30 Count
Grain diameter (um)
0 1 2 3 0 15 30 45 Count
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JV curves for pristine and stressed devices
Figure S6. JV curves backward and forward of the inorganic perovskite films pristine, 1000 H under am1.5 and degraded at 200°C during 1 h, scan rate 10 mV/s.
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 -3 0 3 6 9 12
