Solar Materials

Synonyms
Caesium iodide, Caesium monoiodide

Applications
Cesium iodide can be used as precursor to synthesize lead-free perovskite material, Cs2NaBiI6 (CNBI). The CNBI is highly stable and finds application in the field of solar cells, LEDs, and lasers.

It can be used to prepare brightest red emitting Cs2HfI6 scintillator which is applicable in high resolution gamma spectroscopy.

It can also be used tosynthesize Cesium based nanocrystals for the detection of ionizingradiations.

Features & Benefits

• High quantum efficiency
• High stability to ambient air and gas environment

Frequently used in devices such as phosphor screens for medical imaging, scintillators, calorimeters and a variety of particle detectors.

Synonyms
Greatcell Solar®, Iminomethylamine hydriodide, Methanimidamide iodide

General Description
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Application
Formamidinium iodide (FAI) is an organic halide, which can be used as a precursor solution in the fabrication of perovskite-based heterojunction solar cells.
Formamidinium iodide (FAI) serves as a critical precursor material in the fabrication of perovskite solar cells. FAI is used in material engineering studies to investigate the impact of formamidinium incorporation on perovskite film properties and device performance.
The iodide and bromide based alkylated halides find applications as precursors for fabrication of perovskites for photovoltaic applications.

Legal Information
Product of Greatcell Solar Materials Pty Ltd.
Greatcell Solar® is a registered trademark of Greatcell Solar Materials Pty Ltd
Greatcell Solar is a registered trademark of Greatcell Solar

Synonyms
Lead diiodide, Lead diiodide (PbI2), Lead iodide, Plumbous iodide

General Description
Lead(II) iodide is a wide band gap(2.32 eV)semiconductor material with unique properties such as high resistivity, a widetemperature range (−200 °C up to +130 °C), and good chemical stability.

Application
Lead(II)iodide can be used as a starting material to prepare:

• Polycrystalline α-FAPbI3 thin films by solution processing method. These polycrystalline thin films are applicable as photodetectors.
• Organic/inorganic hybrid 2D perovskite materials, applicable in solar cells.

It can also be used to fabricate a gamma-ray detector at room temperature.

Legal Information
AnhydroBeads is a trademark of Sigma-Aldrich Co. LLC

Synonyms
Stannous iodide, Tin diiodide

General Description
Tin(II) iodide AnhydroBeads™−10 mesh, 99.99% trace metals basis, comes as beads with red to purple in colour with applications in semiconductor research, solar cells, material science, chemical synthesis, catalysis, and photonics. Tin (II) iodide is widely used as a precursor to prepare lead-free, non-toxic hybrid perovskite materials. Tin-based perovskites show excellent electrical and optical properties such as high charge carrier mobility, absorption coefficient, and small exciton binding energies.

Applications
Tin(II) iodide (SnI₂) is a versatile compound with a range of applications in research, particularly in semiconductor technology, solar cells, chemical synthesis, catalysis, etc. SnI₂ is used in perovskite solar cells as a precursor for tin-based perovskites or as an additive to improve device stability and performance. The addition of a small amount of 2D tin film induces well-defined orientation and superior crystallinity in formamidinium tin iodide (FASnI3) films. This results in the longer life of charge carriers and improves the performance of the hybrid perovskite solar cell (HPSC).  It can also be used to prepare solution-processable lamellar hybrid

[CH3(CH2)11NH3]SnI3semiconductor.Its catalytic properties can be leveraged to develop new synthetic methodologies such as reductions, cyclisations, and coupling reactions. It is suitable to be use in photonic applications, including sensors and photovoltaic devices. It is used as a deposition material for preparing thin films for use in electronic and optoelectronic devices. Techniques like chemical vapour deposition (CVD) and physical vapour deposition (PVD) are explored for creating high-quality films. In a study, it is found that when a novel catalytic system comprised of tin sulfide (SnS) nanoflakes as a solid catalyst and tin iodide (SnI2) as a dual-functional electrolyte additive, the Li-air battery enables operating at high current rates up to 10 000 mA g−1 (corresponding to 1 mA cm−2). Also it has been observed that that the role of the SnI2 is not only reacting with the lithium anode to provide protection but reducing the charge potential by promoting catalytic decomposition of the Li2O2.

Features & Benefits
Tin(II) iodide AnhydroBeads™, −10 mesh, 99.99% trace metals basis is designed and tested under stringent dry manufacturing conditions to ensure low water content, trace metal purity of 99.99%, and low surface area-to-volume ratio. The salt possesses excellent electrical and optical properties such as high charge carrier mobility, absorption coefficient, and small exciton binding energies. The advantages of our AnhydroBeads™ salts are as follows:

1) Reduced uptake rate of environmental moisture minimises caking, dusting, and static buildup for repeated easy handling.

2) Higher crucible packing densities and lower volatility in high-temperature solid-state procedures.

3) Easier pneumatic loading of salts to sample chambers due to fewer clogging issues associated with powdered salt counterparts.

Legal Information
AnhydroBeads is a trademark of Sigma-Aldrich Co. LLC