Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.213
Publication date: 18th December 2023
Metal halide perovskite crystals in the macro and nano scales can leverage the huge versatility of the perovskite family. They present exceptional optoelectronic properties that make them attractive for a variety of applications. However, these structures usually depend on complex synthesis processes, where the ligands play a dominating role, or are limited by growth form factor and surface losses.
We present crystallization insights that enable less demanding synthesis processes, such as a promising sol-gel approach [1] for humidity-triggered nanoparticle crystallization or a contactless surface passivation technique for large crystals. The particularity of these systems can be adapted to specific applications such as memristive devices or downconversion films with efficiencies >95%, which also serve as a platform to characterize the fundamental working mechanisms of these materials.
The combination of the crystallization control with additive engineering also opens new routes for lead-free perovskite photovoltaics, improving their ambient and operational stabilities.
The work was partially funded by MCIN/ AEI through project TED2021-131600B-C32, by Generalitat Valenciana via Pla Gent-T (grant CIDEXG/2022/34) and by the research project no. PID2020-119628RB-C31 funded by MCIN/ AEI /10.13039/501100011033.
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