Proceedings of MATSUS Spring 2024 Conference (MATSUS24)
DOI: https://doi.org/10.29363/nanoge.matsus.2024.024
Publication date: 18th December 2023
Photonic architectures offer a promising avenue for optimizing the performance of various optoelectronic devices. Nevertheless, the future of optoelectronic devices hinges on cost-effective and large-scale manufacturing techniques that can reduce expenses and boost production efficiency. To harness the remarkable attributes of photonic structures for enhancing these devices, they must undergo a processing approach akin to that of the devices themselves.
In our research group, we employ soft nanoimprinting lithography, a versatile, rapid, and cost-efficient method for crafting nanostructures from a diverse variety of materials. In soft nanoimprinting lithography, we make use of pre-patterned soft elastomeric stamps to corrugate materials such as resists, biopolymers, colloids and nanomaterials in general. In all cases, the resulting photonic architectures can exhibit a resolution below 100 nm while covering areas up to 1 cm2. During this presentation, I will demonstrate our utilization of pre-patterned stamps to induce the long-range alignment of different colloids, including gold colloids and perovskite nanocrystals, to attain distinct optical properties, such as lattice resonances with high Q-factors. Moreover, I will showcase how elastomeric molds pre-patterned with chiral motifs can lead to chiral metasurfaces, exhibiting strong circular dichroism and intense circularly polarized photoluminescence (CPL), making them seamlessly applicable in various practical applications.
This project received funding from the Spanish Ministerio de Ciencia e Innovación through grants: PID2022-141956NB-I00, TED2021-132807B-I00 by the “European Union NextGenerationEU/PRTR and FUNFUTURE (CEX2019-000917-S), in the framework of the Spanish Severo Ochoa Centre of Excellence program. We also received funding from the EIC PATHFINDER OPEN project 101046489 (DYNAMO), funded by the European Union.
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