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Perovskite Precursor Ink for Nitrogen Processing

Materials, Perovskite Inks, Perovskite Materials


Product Code I201
Price £200 ex. VAT

Specially formulated, high quality perovskite precursor ink

For the fabrication of photovoltaic devices under a nitrogen atmosphere


Overview | Specifications | References


A formulation of methylammounium iodide (MAI), PbCl2 and PbI2 at a molar ratio of 1:1:4 (PbCl2:PbI2:MAI) in a DMF solvent. On processing, I201 ink can be used to create a CH3NH3PbI3-xClx perovskite film. The process recipe for I201 is optimized for glove box processing under a nitrogen atmosphere.

I201 perovskite ink is divided into 10 lots of 0.5 ml. We have found this quantity to be sufficient for 10 individual experiments (approximately 160 device substrates).

Datasheet


We have specially formulated I201 Perovskite Ink in our laboratories to make it suitable for deposition using a spin coater. It is based on similar ink formulations used in references [1]. This ink is designed to be used with a bottom ITO/PEDOT:PSS anode and a top PC70BM/Ca/Al cathode, with PV devices fabricated with an average / peak power conversion efficiency (PCE) of (11.2% ± 0.4)% / 11.8%. This performance level is in accord with other literature reports using similar ink formulations where PCEs of approximately 11.5% have been demonstrated [1]. A full process recipe comes with the ink, which is ready to use after heating for a short time.

Perovskite crystal structure
Representation of perovskite crystal structure lattice orientation. Image copyright D.M. Coles & Ossila, 2014.

Specifications


Perovskite precursor ink formulation: Ink I201 is based on a mixture of methylammonium iodide (MAI), lead chloride (PbCl2) and lead iodide (PbI2) at a molar ratio (PbCl2:PbI2:MAI) of 1:1:4 dissolved in anhydrous DMF (dimethylformamide).

Compound Purity Molar Ratio
MAI > 99% (as measured by Elemental Analysis) 1
PbCl2 99.999% 1
PbI2 99.999% 4
DMF 99.8% N/A
I201 perovskite photovoltaic ink boxed
I201 perovskite ink is divided into 10 x 0.5 ml batches, as demonstrated above, which is sufficient for 10 individual experiments. I201 can also be bought in bulk (30 ml) with a 25% discount over our standard order sizes.

References


  1. Reproducible One-Step Fabrication of Compact MAPbI3-xClx Thin Films Derived from Mixed-Lead-Halide Precursors, D. Wang et al., Chem. Mater., 26, 7145-7150 (2014) DOI: 10.1021/cm5037869
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