Cadmium iodide

Manufactured by Merck Group

Cadmium iodide is a chemical compound with the formula CdI₂. It is a crystalline solid that is used in various laboratory applications, including as a reagent and a starting material for the synthesis of other cadmium compounds.

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4 protocols using cadmium iodide

Formamidinium Lead Iodide Perovskite Synthesis

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The formamidinium lead iodide (FAPbI₃) perovskite precursors consisted of formamidinium hydroiodide (FAI, Advanced Election Technology), lead iodide (PbI₂, Alfa Aesar), 5-aminovaleric acid (5AVA, Aladdin), and passivation molecules [PMs: cadmium iodide (CdI₂), or lead acetate (PbAc₂), or cadmium acetate (CdAc₂), Sigma-Aldrich] with a molar ratio of FAI: PbI₂: 5AVA: PMs = 2:1:0.85:x (x = 0~0.2), which were dissolved in N, N-dimethylformamide (DMF). The concentration of Pb²⁺ should be kept at 0.075 M. The precursors were stirred for 12 h at 55 °C in a nitrogen-filled glovebox before use. The zinc oxide (ZnO) nanocrystals were synthesized according to the literature^{1 (link),31 (link)}.

Liu Y., Tao C., Cao Y., Chen L., Wang S., Li P., Wang C., Liu C., Ye F., Hu S., Xiao M., Gao Z., Gui P., Yao F., Dong K., Li J., Hu X., Cong H., Jia S., Wang T., Wang J., Li G., Huang W., Ke W., Wang J, & Fang G. (2022). Synergistic passivation and stepped-dimensional perovskite analogs enable high-efficiency near-infrared light-emitting diodes. Nature Communications, 13, 7425.

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Synthesis of Metal Chalcogenide Nanocrystals

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Copper
chloride (CuCl, anhydrous, 99.99%),
copper(II) acetate monohydrate (C₄H₆CuO₄·H₂O, 99.99% trace metals basis), cadmium
iodide (CdI₂, 99.990%), mercury bromide (HgBr₂, 99.9%), oleylamine (OM, >70%), and octadecene (ODE, 90%) were
purchased
from Sigma-Aldrich. Elemental sulfur (99%) was obtained from Strem
Chemicals, and methanol (anhydrous, 99.9%) and toluene (anhydrous,
99.8%) were from Carlo Erba reagents. All chemicals were used as received
without further purification.

Xie Y., Bertoni G., Riedinger A., Sathya A., Prato M., Marras S., Tu R., Pellegrino T, & Manna L. (2015). Nanoscale Transformations in Covellite (CuS) Nanocrystals in the Presence of Divalent Metal Cations in a Mild Reducing Environment. Chemistry of Materials, 27(21), 7531-7537.

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Synthesis of Metal Chalcogenide Nanoparticles

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Copper(II) acetylacetonate (Cu(acac)₂, 97%), copper(I)
chloride (CuCl, 99.99%), oleylamine (OLAM,
>70%), octadecene (ODE, 90%), tri-n-octylphosphine
(TOP, 97%), trioctylphosphine oxide (TOPO, 99%), lithium bis(trimethylsilyl)amide
(LiN(SiMe₃)₂, 97%), N,N-dimethylethylenediamine (NND, ≥98.0%), mercury(II)
chloride (HgCl₂, ≥99.5%), cadmium iodide (CdI₂, 99%), lead(II) acetylacetonate (Pb(acac)₂, ≥95%)
and tin(II) chloride (SnCl₂, 98%) were purchased from Sigma-Aldrich,
tellurium powder (99.999%) and selenium powder (99.99%) from Strem
Chemicals, ethanol (anhydrous, ≥99.8%), methanol (anhydrous,
≥99.8%), toluene (anhydrous, ≥99%), and chloroform (anhydrous,
≥99%) from Carlo Erba reagents. All chemicals were used as
received without further purification, and all reactions were carried
out under nitrogen using standard air-free techniques.

Tu R., Xie Y., Bertoni G., Lak A., Gaspari R., Rapallo A., Cavalli A., Trizio L.D, & Manna L. (2016). Influence of the Ion Coordination Number on Cation Exchange Reactions with Copper Telluride Nanocrystals. Journal of the American Chemical Society, 138(22), 7082-7090.

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Synthesis of Lead and Cadmium Iodides

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All the reagents were from commercial sources and used without further purification.
The hydroidic acid (HI, 57 wt% in water) was from Aldrich; the methylamine (CH 3 NH 2 , 33 wt% in ethanol), diethyl ether (Et 2 O, purity ≥ 99.8%), led iodide (PbI 2 , purity 99%), cadmium iodide (CdI 2 , purity 99.999%), and γ-butyrolactone (purity ≥ 99%) were from Sigma-Aldrich.

Navas J., Sánchez-Coronilla A., Gallardo J.J., Martín E.I., Hernández N.C., Alcántara R., Fernández-Lorenzo C, & Martín-Calleja J. (2015). Revealing the role of Pb(2+) in the stability of organic-inorganic hybrid perovskite CH3NH3Pb1-xCdxI3: an experimental and theoretical study. Physical chemistry chemical physics : PCCP, 17(37).

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