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7 protocols using lead chloride

1

Perovskite Solar Cell Fabrication

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Methylammonium iodide (MAI, ≥99.5%) was purchased from Xi’an Polymer Light Technology Corp., Xi’an, China. Lead iodide (PbI2, 99.9985%) and lead chloride (PbCl2, 98%) were purchased from Alfa-Aesar, Ward Hill, MA, USA. Titanium (IV) diisopropoxide bis (acetylacetonate) (75 wt.%) and 1-butanol (99.8%) for the TiO2 blocking layer were purchased from Sigma-Aldrich, St. Louis, MO, USA. N, N-Dimethylformamide (DMF, 99.8% anhydrous), dimethyl sulfoxide (DMSO, ≥99.9% anhydrous), and diethyl ether (DEE, ≥99.7 anhydrous) were purchased from Sigma-Aldrich, St. Louis, MO, USA.
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2

Perovskite Solar Cell Fabrication

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Methylammonium iodide (MAI) was purchased from Great Cell Solar. Lead acetate trihydrate (Pb(CH3COOH)2 ∙ 3H2O, >99.5%) was purchased from TCI. Lead chloride (PbCl2, >99.999%) was purchased from Alfa Aesar. Poly [bis (4-phenyl) (2,4,6-trimethylphenyl) amine] (PTAA) and Bathocuproine (BCP) were purchased from Xi’an p-OLED Corp. [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was purchased from Solarmer. Polymethyl methacrylate (PMMA) was purchased from Shanghai Macklin Biochemical. Toluene, dimethylformamide (DMF), isopropanol (IPA), ethanol, and chlorobenzene (CB) were purchased from Sigma Aldrich and used as received.
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3

Perovskite Solar Cell Material Synthesis

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Caesium bromide (CsBr, 99.999%), lead bromide (PbBr2, 99.999%), lead chloride (PbCl2, 99.999%) was purchased from Alfa Aesar. Formamidinium bromide (FABr) and phenethylammonium bromide (PEABr) were purchased from Greatcell Solar. Rubidium bromide (RbBr, 99.99%), polyvinylpyridine (PVP, average Mw ~55,000), 4,7,10-trioxa-1,13-tridecanediamin (TTDDA), poly(9-vinylcarbazole) (PVK, average Mn 25,000–50,000) were purchased from Sigma Aldrich. The NiOx nano-crystals were purchased from Avantama AG and were used without additional treatment. 1,3,5-tris(1-phenyl-1H-benzimidazol-2-yl)benzene (TPBi) was purchased from Luminescence Technology corp. Other materials for device fabrication were all purchased from Sigma-Aldrich.
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4

Synthesis of Mixed Halide Perovskite Precursor

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ITO substrates were all purchased from Shenzhen Nanbo Ltd. Titanium isopropoxide (97%), methylamine (CH 3 NH 2 ) and hydrogen iodide (HI) were purchased from Sigma Aldrich. 2-isopropanol (HPLC, 99.9%), ethanol (HPLC, 99%), lead chloride (PbCl 2 , 99.99%), N, N-Dimethylformamide (DMF, 99.9%) were purchased from Alfa Aesar. All the materials were used as received without further purification.
Methylammonium iodide (CH 3 NH 3 I) was synthesized by following reported method 47 and purified with ethanol twice. CH 3 NH 3 I crystals was dried at 45 ℃ in vacuum for 48 h before usage. The precursor solution of mixed halide perovskite with a concentration of 40 wt % and 50 wt % are prepared by mixing CH 3 NH 3 I with PbCl 2 powder with a molar ration of 1:3 in DMF. The mixture solution was stirred at 70 ℃ over 8 h and filtered with a 0.45 μm filter before film preparation.
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5

Synthesis and Characterization of Lead-Based Compounds

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Lead chloride and glacial acetic acid were purchased from Fisher Scientific (Fairlawn, NJ, USA), imidazole and malonic acid were obtained from Aldrich (Milwaukee, WI, USA), 18-crown-6 ether was acquired from Sigma-Aldrich (St. Louis, MO, USA), and methanol was attained from Pharmco-Aaper (Brookfield, CT, USA). All reagents were of analytical grade. Ultra pure CE water obtained from Agilent Technologies (Santa Clara, CA, USA).
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6

Synthesis and Characterization of Tungsten Oxide Nanoparticles

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Tungsten oxide (WO3, orthorhombic crystal) nanoparticles (spherical, 23–65 nm in diameter, and 99.95% purity) were purchased from US Research Nanomaterials (USA). Pyridine and toluene were purchased from Alfa Aesar (USA). (3-aminopropyl)triethoxysilane (APTES, 99%) was purchased from Sigma-Aldrich (USA). Cadmium chloride anhydrous, lead chloride, ethylenediaminetetraacetic acid (EDTA), and tris (hydroxymethyl)aminomethane were purchased from Fisher Scientific (USA). Diethyl ether and sodium dihydrogen phosphate were purchased from Acros Organics (Geel, Belgium). Standard Suwannee River natural organic matter (NOM) was obtained from the International Humic Substances Society (IHSS, USA). A NOM stock solution (100 mg/L) was prepared by mixing a known amount of NOM with DI water for 24 h. The pH of the stock solutions was adjusted to 8 with 0.1 M and 0.01 M NaOH and HCl. All chemicals were used as received, without further purification. All solutions were prepared with deionized water (18 MΩ-cm) from a Barnstead NANOpure Diamond water purification system (USA).
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7

Synthesis and Characterization of Lead-Based Compounds

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Lead chloride and glacial acetic acid were purchased from Fisher Scientific (Fairlawn, NJ, USA), imidazole and malonic acid were obtained from Aldrich (Milwaukee, WI, USA), 18-crown-6 ether was acquired from Sigma-Aldrich (St. Louis, MO, USA), and methanol was attained from Pharmco-Aaper (Brookfield, CT, USA). All reagents were of analytical grade. Ultra pure CE water obtained from Agilent Technologies (Santa Clara, CA, USA).
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