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PbBr2 is an inorganic compound with the chemical formula PbBr2. It is a crystalline solid that is white or pale yellow in color. PbBr2 is commonly used as a reagent in various chemical applications.

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Lab products found in correlation

4 tert butylpyridine tbp, by Merck Group (2 mentions) N n dimethylformamide (dmf), by Merck Group (2 mentions) Dimethyl sulfoxide (dmso), by Merck Group (2 mentions) Ethyl acetate, by Merck Group (2 mentions) Lithium bis trifluoromethanesulfonyl imide litfsi, by Merck Group (1 mentions) Spiro ometad, by Merck Group (1 mentions) 2 2 7 7 tetrakis n n di p methoxyphenylamino 9 9 spirobifluorene spiro ometad, by Lumtec (1 mentions) Acetonitrile, by Merck Group (1 mentions) Methylammonium bromide, by Tokyo Chemical Industry (1 mentions) Ch3nh3br, by Greatcell Solar (1 mentions) Ch nh2 2i fai, by Greatcell Solar (1 mentions) Formamidine sulfinic acid, by Merck Group (1 mentions) Ingenuity pathway analysis (ipa), by Merck Group (1 mentions) Organic halide salts, by Greatcell Solar (1 mentions) 2pacz, by Tokyo Chemical Industry (1 mentions) Meo 2pacz, by Tokyo Chemical Industry (1 mentions) Chlorobenzene, by Merck Group (1 mentions) Caesium iodide, by Merck Group (1 mentions)

9 protocols using pbbr2

1

Fabrication of Perovskite Solar Cells

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All chemicals were used as purchased without any purification. The materials for preparing the perovskite absorber, including PbBr2 (99%), MABr (>98%), and KI (>99.5%), were purchased from Tokyo Chemical Industry (TCI) Co., LTD. The PbI2 (99.99%) was obtained from Kojundo Chemical Laboratory Co., LTD. The FAI (>99%) was purchased from Dyesol, LTD. Titanium diisopropoxide bis(acetylacetonate) (75 wt. % in isopropanol), lithium bis(trifluoromethanesulfonyl)imide (LiTFSI), and 4-tert-butylpyridine (tBP) were purchased from Sigma-Aldrich. Magnesium(II) Bis(trifluoromethanesulfonyl)imide (Mg(TFSI)2) as a dopant in the compact layer was also obtained from TCI Co., LTD. TiO2 paste with a size of 24 nm was purchased from JGC C&C. The Spiro-OMeTAD was purchased from Merck. All solvents were purchased from Wako Pure Chemical Industries, LTD.
Tang Z., Bessho T., Awai F., Kinoshita T., Maitani M.M., Jono R., Murakami T.N., Wang H., Kubo T., Uchida S, & Segawa H. (2017). Hysteresis-free perovskite solar cells made of potassium-doped organometal halide perovskite. Scientific Reports, 7, 12183.
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2

Perovskite Solar Cell Material Preparation

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Lead halides (PbI2 and PbBr2) were purchased from Tokyo Chemical Industry. Formamidinium iodide (FAI), methylammonium bromide, and OABr were purchased from Dyesol. Methylammonium chloride (MACl), lithium bis(trifluoromethanesulfonyl)imide salt (Li-TFSI), anhydrous dimethylformamide (DMF), anhydrous dimethyl sulfoxide (DMSO), chlorobenzene, acetonitrile, and 4-tert-butylpyridine (tBP) were purchased from Sigma-Aldrich. Last, 2,2′,7,7′-tetrakis(N,N-di-p-methoxyphenylamino)-9,9′-spirobifluorene (spiro-OMeTAD) and tris(2-(1H-pyrazol-1-yl)-4-tert-butylpyridine)-cobalt(III)tris(bis(trifluoromethylsulfonyl)imide)) salt (Co-TFSI) were purchased from Lumtec.
Cho C., Jang Y.W., Lee S., Vaynzof Y., Choi M., Noh J.H, & Leo K. (2021). Effects of photon recycling and scattering in high-performance perovskite solar cells. Science Advances, 7(52), eabj1363.
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3

Synthesis of Perovskite Materials

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The methylammonium bromide (MABr), the small cation isopropylammonium bromide (iPAmBr), and PbBr2 were purchased from Tokyo Chemical Industry (TCI). Phenylethylammonium bromide (PEABr), cesium bromide (CsBr), fused lithium fluoride (LiF), and metal aluminium pieces were purchased from Sigma-Aldrich. The chemicals 2,2′,2″-(1,3,5-benzinetriyl)-tris(1-phenyl-1-H-benzimidazole) (TPBi), poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS), toluene, and dimethyl sulfoxide (DMSO) were purchased from Ossila, Heraeus, Acros Organics, and Alfa Aesar, respectively. All chemicals were used as received without any further purification.
Rivera Medina M.J., Di Mario L., Kahmann S., Xi J., Portale G., Bongiovanni G., Mura A., Alonso Huitrón J.C, & Loi M.A. (2023). Tuning the energy transfer in Ruddlesden-Popper perovskites phases through isopropylammonium addition - towards efficient blue emitters. Nanoscale, 15(14).
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4

Synthesis of CsBr and PbBr2 Crystals

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CsBr and PbBr2 were purchased from Tokyo Chemical Industry and used as received. They were dissolved in DMSO at a concentration of 0.4 M. The solution was stirred at 300 rpm and 50 °C for 10 min. After that, ACN was added as a poor solvent until the solution reached saturation. The solution was stirred at room temperature for 3 h and subsequently filtered.
Enomoto S., Tagami T., Ueda Y., Moriyama Y., Fujiwara K., Takahashi S, & Yamashita K. (2022). Drastic transitions of excited state and coupling regime in all-inorganic perovskite microcavities characterized by exciton/plasmon hybrid natures. Light, Science & Applications, 11, 8.
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5

Perovskite Material Procurement Protocol

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All materials were purchased from commercial sources and used without further purification unless otherwise mentioned. PbI2 and PbBr2 (99.99%) were purchased from TCI Chemicals. All the organic salts for perovskites were purchased from GreatCell Solar. All the solvents were bought from Sigma-Aldrich. PCDTBT, PTB7-Th, IEICO-4F, COTIC-4F, and PC61BM were purchased from 1-Material Inc., while PM6, Y6, and PFN-Br were purchased from Solarmer Materials Inc.
Ollearo R., Ma X., Akkerman H.B., Fattori M., Dyson M.J., van Breemen A.J., Meskers S.C., Dijkstra W., Janssen R.A, & Gelinck G.H. (2023). Vitality surveillance at distance using thin-film tandem-like narrowband near-infrared photodiodes with light-enhanced responsivity. Science Advances, 9(7), eadf9861.
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6

Fabrication of Perovskite Solar Cells

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The perovskite solution
was prepared by mixing the precursors PbI2 (TCI Chemicals),
PbBr2 (TCI Chemicals), CH(NH2)2I
(FAI, GreatCell Solar), CH3NH3Br (MABr, GreatCell
Solar), and CsI (Alfa Aesar) in a 3:1 (vol %) N,N-dimethylformamide (DMF, anhydrous, Sigma-Aldrich):dimethyl
sulfoxide (DMSO, anhydrous, Sigma-Aldrich) ratio with a concentration
of 0.8 M. The precursors were added with the following ratios: Cs0.1(MA0.17FA0.83)0.9Pb0.84(I0.8Br0.2)2.68. The resulting
film thickness of the triple cation perovskite is ca. 220 nm. The
perovskite films were deposited on the glass substrates by a two-step
spin-coating process: In the first step, the perovskite solution was
spin-coated dynamically at 1000 rpm for 10 s. In the second step,
at 6000 rpm, for 20 s, chlorobenzene (anhydrous, Sigma-Aldrich, 100
μL) was dripped onto the sample after 12 s. The films were annealed
at 100 °C for 1 h to complete the crystallization process. The
complete process is performed in a nitrogen-filled glovebox.
Allegro I., Bonal V., Mamleyev E.R., Villalvilla J.M., Quintana J.A., Jin Q., Díaz-García M.A, & Lemmer U. (2023). Distributed Feedback Lasers by Thermal Nanoimprint of Perovskites Using Gelatin Gratings. ACS Applied Materials & Interfaces, 15(6), 8436-8445.
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7

Perovskite Solar Cell Fabrication

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All materials were used as received without further purification. PbI2 (99.99%), PbBr2 (99.99%), PbCl2 (99.99%), 4PACz (>98.0%) and MeO-2PACz (>98.0%) were purchased from TCI Chemicals. SnI2 (99.999%) was purchased from Alfa Aesar. SnF2 (99.9%), formamidine sulfinic acid (FSA, ≥98%), CsI (99.999%), DMF, (99.8% anhydrous), DMSO (99.9% anhydrous), IPA (99.8% anhydrous), ethyl acetate (99.8% anhydrous) and ITO NCs (<100 nm particle size (DLS) were purchased from Sigma-Aldrich. The organic halide salts (FAI, MAI, PEAI, DMAI, MACl) were purchased from GreatCell Solar Materials (Australia). Guanidinium thiocyanate (99%) and BCP (>99% sublimed) were purchased from Xi’an Polymer Light Technology Corp. PEDOT:PSS aqueous solution (Al 4083) was purchased from Heraeus Clevios (Germany). The C60 was purchased from Nano-C. NiO nanocrystals were synthesized according to previous reports.
Wen J., Zhao Y., Wu P., Liu Y., Zheng X., Lin R., Wan S., Li K., Luo H., Tian Y., Li L, & Tan H. (2023). Heterojunction formed via 3D-to-2D perovskite conversion for photostable wide-bandgap perovskite solar cells. Nature Communications, 14, 7118.
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8

Perovskite Solar Cell Fabrication

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All materials were used as received without further purification. The organic halide salts (FAI, FABr, MAI, FAI, GuaBF4) were purchased from GreatCell Solar Materials (Australia). PEDOT:PSS aqueous solution (Al 4083) was purchased from Heraeus Clevios (Germany). 2PACz (>98.0%) and MeO-2PACz (>98.0%) were purchased from Tokyo Chemical Industry. PbI2 (99.99%), PbBr2 (99.99%)CsI (99.9%), and CsBr (99.9%) were purchased from TCI Chemicals. SnI2 (99.999%) was purchased from Alfa Aesar. SnF2 (99%), Indium tin oxide nanocrystals, DMF (99.8% anhydrous), DMSO (99.9% anhydrous), ethyl acetate (99.8% anhydrous), and chlorobenzene (99.8% anhydrous) were purchased from Sigma-Aldrich. C60 was purchased from Nano-C (USA). BCP (>99% sublimed) was purchased from Xi’an Polymer Light Technology (China). Ftetrakis(dimethylamino) tin(iv) (99.9999%) was purchased from Ai Mou Yuan Scientific Equipment (Nanjing).
Wang Y., Lin R., Wang X., Liu C., Ahmed Y., Huang Z., Zhang Z., Li H., Zhang M., Gao Y., Luo H., Wu P., Gao H., Zheng X., Li M., Liu Z., Kong W., Li L., Liu K., Saidaminov M.I., Zhang L, & Tan H. (2023). Oxidation-resistant all-perovskite tandem solar cells in substrate configuration. Nature Communications, 14, 1819.
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9

Perovskite Solar Cell Ink Formulation

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All solvents were purchased from Sigma Aldrich. PbI2 and PbBr2 were purchased from TCI Chemicals, MAI and FABr were purchased from Ossila, and Caesium Iodide was purchased from Sigma Aldrich. The stoichiometric inks prepared contained 467.5 mg mL−1 of PbI2, 167.2 mg mL−1 of MAI, 68.3 mg mL−1 of PbBr2 and 18.8 mg mL−1 of MABr. These were weighed out and dissolved in each of the relevant solvents (DMF/DMSO or DMSO). A stock solution of CsI was prepared in DMSO (389 mg mL−1), with 40 μL of this solution then added to the solution. The final stoichiometry of the resultant solutions was Cs0.05FA0.81MA0.14PbI2.55Br0.45.
O'Kane M.E., Smith J.A., Alanazi T.I., Cassella E.J., Game O., van Meurs S, & Lidzey D.G. (2021). Perovskites on Ice: An Additive‐Free Approach to Increase the Shelf‐Life of Triple‐Cation Perovskite Precursor Solutions. Chemsuschem, 14(12), 2537-2546.
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