Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.362
Publication date: 18th December 2023
The self-intercalation of organic and inorganic components in two-dimensional (2D) layered perovskites brings up new avenues for the structural engineering of efficient white light emitters from a single material. Recent studies focused on the impact of organic cations on the material’s dimensionality, bandgap, and crystallographic structure.[1,2] Yet, their effects on the emission properties have only been investigated using random selection.[3] Here, we show an experimental approach based on molecular descriptors of organic cations to study their role in the emission characteristics of organic-inorganic layered perovskites. To this aim, we collected experimental data in real-time and uploaded it to a digital platform for data interaction, analysis, and preservation. We first carefully selected primary and secondary amines and established a robust synthetic protocol that is performed at relatively low temperatures and through simple steps.[4] Up to date, we have prepared 47 different layered structures, and established seven digital protocols that allow straightforward correlation between structural and optical. Initial correlations between amine molecular descriptors and the collected synthesis and optical data indicate that the use of short organic cations with heteroatoms and with a low number of valence electrons allows broadband emitting layered structures, and the heteroatom position might lead to tunable emission from blue to white. Such data integration and analysis in real-time, including sorting, interactive exploration, and data graphical representation, open alternative avenues to fabricate efficient white-emitting structures from a single material, with a broad perspective for other functionalities.
This work received funding from the AI-4-QD project financed by the Italian Ministry of Foreign affairs and International Cooperation (MAECI) within the bilateral Italy–Israel program.
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