Molecular HDD logic for encrypted massive data storage.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 40016287.
- Also identified by DOI 10.1038/s41467-025-57410-8 and PMC identifier 11868525.
- Licence recorded as CC BY-NC-ND.
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Abstract
Organic memories, with small dimension, fast speed and long retention features, are considered as promising candidates for massive data archiving. In order to satisfy the requirements for ultra-low power and high-security information storage, we design a conceptual molecular hard-disk (HDD) logic scheme that is capable to execute in-situ encryption of massive data in pW/bit power-consumption range. Beneficial from the coupled mechanism of counter-balanced redox reaction and local ion drifting, the basic HDD unit consisting of ~200 self-assembled Ru<sup>X</sup>LPH molecules in a monolayer (SAM) configuration undergoes unique conductance modulation with continuous, symmetric and low-power switching characteristics. 96-state memory performance, which allows 6-bit data storage and single-unit one-step XOR operation, is realized in the Ru<sup>X</sup>LPH SAM sample. Through single-unit XOR manipulation of the pixel information, in-situ bitwise encryption of the Mogao Grottoes mural images stored in the molecular HDD is demonstrated.