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n-Butylammonium Bromide

CAS Number 15567-09-6

Materials, Perovskite Materials, Perovskite Precursor Materials

Product Code M2058A1-25g
Price £155 ex. VAT

n-Butylammonium bromide, high quality perovskite precursor

Used to tune perovskite nanoplatelet structures for perovskite LEDs and solar cells

Overview | Specifications | MSDS | Literature and Reviews | Resources and Support

General Information

CAS number 15567-09-6
Chemical formula C4H12BrN
Molecular weight 154.05 g/mol
  • BABr
  • 1-Butanamine hydrobromide
  • 1-Butanaminium bromide
Classification / Family Perovskite precursor materials, Perovskite solar cells, Perovskite LEDs


N-Butylammonium bromide (BABr) is commonly used to tune colloidal perovskite nanoplatelet structures for desired absorption/emission energy and device performance for perovskite LEDs and Solar cells. [1]

When larger-group ammonium halides that act as surfactants (such as BAI or BABr) are added to the perovskite precursor solution, they dramatically constrain the growth of 3D perovskite grain. This results in the production of crystallites with dimensions as small as 10 nm, and a film roughness of less than 1 nm [2].

Product Details

Purity ≥ 98%
Melting point 205.4 °C
Colour White powder/crystals

Chemical Structure

n-Butylammonium bromide, BABr, Butanamine hydrobromide
Chemical structure of n-butylammonium bromide; CAS No. 15567-09-6; chemical fomula C4H12BrN.
Device structure  ITO (150 nm)/HTL (30 nm)/BABr:MAPbBr3 (20:100) (70 nm) /TPBi (60 nm)/LiF (1.2 nm)/Al (100 nm) [2]
Colour green light emitting device Green
Current Efficiency @ 1000 cd/m2 17.1 cd/A
MAax Power Efficiency 13.0 lm W−1
Max EQE 9.3%

MSDS Documentation

n-Butylammonium bromide MSDSn-Butylammonium bromide MSDS Sheet

Literature and reviews

  1. Highly Tunable Colloidal Perovskite Nanoplatelets through Variable Cation, Metal, and Halide Composition, M. C. Weidman et al., ACS Nano, 10 (8), 7830–7839 (2016); DOI: 10.1021/acsnano.6b03496.
  2. 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.
  3. 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.

Resources and Support

Perovskite Solar Cells: Methods of Increasing Stability & Durability

This article follows up on a previous article - Perovskite Solar Cells: Causes of Degradation, and aims to introduce some methods that have been adapted to improve perovskite solar cell stability.

Learn more...
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