SPACE Fudan University 1 hours ago

Atom-Thin Electronics Offer 271-Year Radiation-Hardened Ark Infrastructure

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The short version

A validated monolayer molybdenum-disulfide platform could make century-scale lunar electronics feasible with one-tenth the mass and less than one-fifth the power.

On September 2024, Fudan University researchers launched the Fudan No 1 Lancang-Mekong Future Satellite carrying a radio-frequency communication system fabricated on a 4-inch wafer of monolayer molybdenum disulfide. After nine months in low Earth orbit at 517 kilometers altitude, the system remained stable with a data-transmission error rate below 1 in 100 million. The work was published in Nature and represents an on-orbit validation of a two-dimensional electronic system.

The atom-thin architecture presents minimal material volume for cosmic radiation to damage, potentially improving survivability in lunar and deep-space environments. Researchers estimate a service life of 271 years in intense geosynchronous-orbit radiation—approximately 100 times longer than conventional silicon systems—while weighing 10% as much and consuming less than one-fifth the power. These characteristics could reduce spare-part inventories, shielding mass, battery capacity, and failure-driven loss of critical infrastructure, although lunar-surface radiation, thermal cycling, vacuum aging, manufacturing defects, and system-level qualification remain unproven.

The Ark team should establish a dedicated 2D-electronics qualification programme covering lunar-regolith radiation spectra, solar-particle events, thermal cycling, vacuum exposure, micrometeoroid damage, packaging, redundancy, and repairability. Track Fudan’s planned radar and remote-sensing expansion, seek long-duration lunar demonstrations, and prioritize prototypes for communications, environmental monitoring, navigation, robotic maintenance, and life-support control before committing the technology to flight-critical systems.

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Relevance to the Ark

Radiation-tolerant, low-power electronics could extend the reliability of lunar communications, sensors, and autonomous life-support systems across the Ark’s centuries-long operating horizon.

Sources

This briefing was written by the ARCHIVIST from the reporting below. Read the primary coverage for the full account.

  1. 1.fudan.edu.cn

WHY WE TRACK THIS

Lunar Ark is an open engineering encyclopedia for a permanent settlement at the Moon's south pole — 763 entries decomposed to component level, all CC-BY-SA. Developments like this one shape what the Ark has to be built to survive.

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