Publication date: 28th August 2024
Over the last decade, halide perovskites have undoubtedly become one of the most promising materials or set of materials for a plethora of optoelectronic applications. However most synthetic and thin film deposition and growth approaches currently employed are difficult to upscale.
In this talk I will discuss some simple and upscalable methods for halide perovskites:
In the first part, I will present solvent-free mechanochemical grinding by ball-milling as a way to obtain high-purity perovskite bulk and nano powders on a gram scale in a short time. Moreover I will show how thermal vacuum deposition allows for the transformation of this bulk powders into high quality thin films with excellent optoelectronic properties in a completely solvent-free approach.
In the second part of the talk, I will discuss a simple spray-coating deposition method based on commercial and cost-effective airbrush technology. This methodology employs pre-synthesized colloidal nanoinks formed by room-temperature, short-ligand-assisted reprecipitation route. Eventually, spray-coated films are employed in proof-of-concept photodetectors with significant responsivity.
The authors acknowledge funding for project TED2021-129609B-I00 funded by MCIN/AEI /10.13039/501100011033 and by the European Union NextGenerationEU/ PRTR; Grant PID2022-139191OB-C32 funded by MICIU/AEI /10.13039/501100011033 and by FEDER, EU; and Grant CNS2023-144331 funded by MCIN/AEI/10.13039/ 501100011033 and by the European Union “NextGenerationEU”/PRTR. F. P. acknowledges funding for grant RYC2020-028803-I funded by MCIN/AEI/10.13039/501100011033 and “ESF Investing in your future”.
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