Direct photo-patterning of halide perovskites toward machine-learning-assisted erasable photonic cryptography.

ABSTRACT: The patterning of perovskites is significant for optical encryption, display, and optoelectronic integrated devices. However, stringent and complex fabrication processes restrict its development and applications. Here, we propose a conceptual methodology to realize erasable patterns based on binary mix-halide perovskite films via a direct photo-patterning technique. Controllable ion migration and photochemical degradation mechanism of iodine-rich regions ensure high-fidelity photoluminescence images with different patterns, sizes, and fast self-erasure time within 5 seconds, yielding erasable photonic cryptography chip, which guarantees the efficient transmission of confidential information and avoids the secondary leakage of information. The ultrafast information encryption, decryption, a

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC11977006 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature