Nanoxo’s solvent-free metal halide perovskites have been stored in neutral gas at room temperature for over three years. This long storage period was a great opportunity to evaluate their quality with PXRD and potential instability over time.

It turned out that 3-year-old samples taken straight out of the box retained their initial quality, and their phase composition remained unchanged.

Also, FAPbI3, which is intrinsically thermodynamically metastable, is phase-pure and fully usable following short-term heating before use.

This makes Nanoxo’s solvent-free perovskites an ideal candidate for scientific and industrial applications to ensure high-quality and repeatable results:

1. Possibility of long-term storage – no ink-induced degradation
2. 100% pure phase – always perfect stoichiometry
3. Lack of starting materials  – elimination of the precursor weighing error
4. No batch-to-batch variability
5. Freedom of the solvent choice adapted to the specific deposition methods
6. Green solvent-free manufacturing method
7. Scalable technology