High Purity n-Butylammonium Bromide (nBABr, C₄H₁₂BrN), 99.5%, 5g

n-Butylammonium Bromide (nBABr) is used as an additive for perovskite since it can provide the tert-butyl bulky group, which can promote material solubility and device stability by tuning the morphology of the perovskite films. Since the tert-butyl bulky group has larger radius, it can server as splitter, changing the perovskite crystal to 2D plates and thus changes the morphology. It is usually used for iodide-based perovskite to avoid introducing other halide ions or intentionally to introduce iodide for non-iodide-based perovskite. nBAI, iBAI, and tBAI can all serve the purpose, but tBAI is the best at increasing the stability but sacrificing the most efficiency while nBAI sacrifices the least efficiency and is the worst at increasing stability (still can increase more than 20% life time though).

Technical Data:

Product Name	n-Butylammonium Bromide
Synonym	nBABr 1-Butanamine hydrobromide 1-Butanaminium bromide
SKU#	CM7023
CAS Number	15567-09-6
Chemical Formula	C₄H₁₂BrN
Molecular Weight	154.05 g/mol
Purity	≥99.5% (4 Times Purification )
Appearance	White Powder
Melting Point	205.4 °C
Solubility	High soluble in EtOH, DMF, DMSO, water et al.
Packaging	5 g, or as required in glass bottle
Store	25 ℃ under N₂ atmosphere
Notes	XRD & HNMR spectra, user instruction for enquiring

References:

[1]: The Effect of Tert-butylammonium Addition in Methylammonium Lead Iodide Perovskite Solar Cells. In 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), pp. 1483-1486. IEEE, 2019.

[2]: Surface modification via self-assembling large cations for improved performance and modulated hysteresis of perovskite solar cells. Journal of Materials Chemistry A 7, no. 12 (2019): 6793-6800.

[3]: Effect of Steric Hindrance of Butylammonium Iodide as Interface Modification Materials on the Performance of Perovskite Solar Cells. Solar RRL (2022): 2200078.

High Purity n-Butylammonium Bromide (nBABr, C4H12BrN), 99.5%, 5g

Technical Data:

High Purity n-Butylammonium Bromide (nBABr, C₄H₁₂BrN), 99.5%, 5g