Pulsed Laser Deposition of CsAgBiBr: from Mechanochemically Synthesized Powders to Dry, Single-Step Deposition.

CsAgBiBr has been proposed as a promising lead-free and stable double perovskite alternative to hybrid and lead-based perovskites. However, the low solubility of precursors during wet synthesis, or the distinct volatility of components during evaporation, results in complex multistep synthesis approaches, hampering the widespread employment of CsAgBiBr films. Here, we present pulsed laser deposition of CsAgBiBr films as a dry, single-step and single-source deposition approach for high-quality film formation.