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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

Synonyms
Greatcell Solar®, TiO2 paste

CAS No
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General Description
Transparent titania (TiO2) paste is a visual range transparent paste that has a large surface area to volume ratio. The average diameter of the TiO2 nanoparticle within the paste is 20nm and the transparent sintered films are around 6-7 μm thick per printed layer.

Application
TiO2 paste forms a screen printed film which is majorly used as a conduction band on indium tin oxide (ITO) or fluorine doped tin oxide (FTO) based substrates for dye sensitized solar cells and for major photovoltaic based applications.
Use Transparent Titania Paste in applications that require a transparent sintered titania film with a large surface/volume ratio.

Transparent Titania Paste is formulated to yield sintered film thicknesses of 6-7μm when screen printed with a 43T mesh. Transparent Titania Paste has highly dispersed and stable anatase nanoparticles.

It is optimised for screen printing using a synthetic 43T mesh screen (or similar). After drying; this paste must be fired at or above 500°C. This results in a transparent sintered layer; with a film thickness of approximately 6-7μm for one printed layer and ~12μm for two printed layers; when using a 43T mesh screen.

The paste exhibits optimal rheological properties that provide good surface uniformity and contains organic binders specially formulated to provide versatile porosity suitable for a range of dye/electrolyte systems.

Storage: Store in the dark at 20°C

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
Nanotitania, TiO₂ anatase, TiO2 nanopowder, Titania, Titanium(IV) oxide, anatase, Titanium dioxide

CAS No
1317-70-0

General Description
Our titanium(IV) oxide, anatase nanopowder is a fine white powder composed of titanium dioxide nanoparticles with a particle size less than 25 nm. Anatase is a metastable polymorph of TiO2, which is less hard and less dense than the rutile polymorph. Optically, anatase nanopowder has a lower refractive index, absorbs less UV light, and exhibits greater photocatalytic activity than the rutile polymorph. Consequently, anatase is often preferred in applications where photocatalytic activity is desired, such as self-cleaning surfaces and solar cells.

Application
Titania paste may be used as a transparent coating for self cleaning glass. Low optical scattering titania-acrylate nanocomposites have been reported. Metal contacts in solar cells based on titanium dioxide and di-(isothiocyanate)-bis-(2,2′-bipyridyl-4,4′-dicarboxylate)ruthenium(II) have been studied.

Synonyms
Titania, Titanium(IV) oxide, mixture of rutile and anatase, Titanium dioxide

CAS No
13463-67-7

General Description
Titanium(IV) oxide, mixture of rutile and anatase (TiO2) is a titania based nanoparticle solution that is dispersed in water.

Application
TiO2 suspensions can be used for a variety of applications such as:

• photo-catalytic applications
• cosmetics, textile, and paints
• fabrication of flexible humidity sensors