dimethylammonium iodide Chemical Properties

Melting point:

153.0 to 157.0 °C

Water Solubility 

Soluble in water

form 

powder

InChI

1S/C2H7N.HI/c1-3-2;/h3H,1-2H3;1H

InChIKey

JMXLWMIFDJCGBV-UHFFFAOYSA-N

SMILES

CNC.I

color 

Powder/crystals

Safety Information

Risk Statements 

36/37/38

Safety Statements 

26

WGK Germany 

WGK 3

HS Code 

29239000

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

dimethylammonium iodide Usage And Synthesis

Applications

Dimethylammonium iodide (DMAI) is the precursor for the DMAPbI3 2H-perovskite structure. Unlike its MAPbI3 analogue, it is stable under ambient conditions for several months. DMAPbI3 has a relatively large optical gap (Eg ∼ 2.59 eV), indicating the conductivity of such material is ionic, instead of being electronic.
Like other alkylammonium halides, dimethylammonium iodide is also used as an additive to adjust the structures of the perovskites to achieve desired physical properties.

Description

Dimethylammonium iodide (DMAI) is the precursor for the DMAPbI3 2H-perovskite structure. Unlike itsMAPbI3 analogue, it is stable under ambient conditions for several months .DMAPbI3 has a relatively largeoptical gap (Eg ～ 2.59 eV), indicating the conductivity of such material is ionic, instead of being electronic.

Uses

The iodide and bromide based alkylated halides find applications as precursors for fabrication of perovskites for photovoltaic applications.

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