Femtosecond laser direct nanolithography of perovskite hydration for temporally programmable holograms.

ABSTRACT: Modern nanofabrication technologies have propelled significant advancement of high-resolution and optically thin holograms. However, it remains a long-standing challenge to tune the complex hologram patterns at the nanoscale for temporal light field control. Here, we report femtosecond laser direct lithography of perovskites with nanoscale feature size and pixel-level temporal dynamics control for temporally programmable holograms. Specifically, under tightly focused laser irradiation, the organic molecules of layered perovskites (PEA)₂PbI₄ can be exfoliated with nanometric thickness precision and subwavelength lateral size. This creates inorganic lead halide capping nanostructures that retard perovskite hydration, enabling tunable hydration time constant. Leveraging

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC11303552 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature