CAS 879643-71-7 Formamidine HydroIodide (Low water content)

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Formamidine HydroIodide (Low water content)

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Catalog Number

ACM879643717-2

CAS Number

879643-71-7

Product Name

Formamidine HydroIodide (Low water content)

Category

Electronic Materials; Perovskite Solar Cell (PSC) Materials

Synonyms

FAI (Low water content); Formamidinium Iodide (Low water content)

IUPAC Name

methanimidamide;hydroiodide

Molecular Weight

171.97 g/mol

Molecular Formula

CH5IN2

Canonical SMILES

C(=N)N.I

InChI

InChI=1S/CH4N2.HI/c2-1-3;/h1H,(H3,2,3);1H

InChI Key

QHJPGANWSLEMTI-UHFFFAOYSA-N

Melting Point

242 °C(dec.)

Purity

>98.0%(T)(N)

Application

Formamidine HydroIodide (Low water content) serves as a crucial precursor in the development of advanced perovskite-based heterojunction solar cells. By utilizing this compound, the fabrication process can achieve a narrower bandgap of formamidinium lead iodide compared to traditional methylammonium lead iodide, positioning it closer to optimal solar conversion efficiencies. This method involves the direct intramolecular exchange of dimethylsulfoxide (DMSO) molecules intercalated in PbI2 with formamidine hydroiodide to crystallize FAPbI3, enabling the creation of solar cells with over 20% efficiency. Furthermore, careful control of variables such as humidity and the addition of low-volatility additives like FACl and MACl contribute to the stabilization of the perovskite phase, enhancing the structural integrity and performance of the final solar cell.

Color

White to Almost White Powder to crystaline

Complexity

10.3

Covalently-Bonded Unit Count

Exact Mass

171.94975g/mol

Form

Solid

Formal Charge

Heavy Atom Count

Monoisotopic Mass