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N-butylammonium iodide (BAI), is commonly added to 3D-perovskite precursor solutions to hinder the growth of 3D-perovskite grains, dramatically decreasing the roughness of films [1].
Compared with methylammonium iodide (MAI), it is believed that ammonium ions with longer chains will not be able to fit at the corner of PbX4's (X = I, Br, Cl) octahedral layers - resulting in the formation of layered perovskite (a.k.a. Ruddlesden–Popper) structures. BAX-incorporated layers demonstrated great improvement on lifetime and operational stability for LED devices.
General Information
| CAS number | 36945-08-1 |
| Chemical formula | C4H12IN |
| Molecular weight | 201.05 g/mol |
| Synonyms | BAI, Butylamine Hydroiodide |
| Classification / Family | Perovskite precursor materials, Perovskite solar cells, Perovskite LEDs |
Product Details
| Purity | 98% |
| Melting point | 173 °C (exp.) |
| Colour | Powder/crystals |
Chemical Structure
MSDS Documentation
n-Butylammonium iodide MSDS sheet
Literature and reviews
- Efficient perovskite light-emitting diodes featuring nanometre-sized crystallites, Z. Xiao et al., Nat. Photonics, 11, 108–115 (2017); doi:10.1038/nphoton.2016.269.
- Efficient ambient-air-stable solar cells with 2D–3D heterostructured butylammonium-caesium-formamidinium lead halide perovskites, Z. Wang et al., Nat. Energy, 6 17135 (2017); doi:10.1038/nenergy.2017.135.
- Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites, J.-C. Blancon et al., Science, 10.1126/science.aal4211 (2017); DOI: 10.1126/science.aal4211.
To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.