DOE Breakthrough in Domestic Silicon and Germanium Isotope Supply Chains

DOE Breakthrough in Domestic Silicon and Germanium Isotope Supply Chains

DOE, Oak Ridge produce ultra-enriched silane for quantum computers. Silicon-28, germanium-74 isotopes boost qubit coherence, securing domestic quantum supply chain.

LS
Linsey Smith
Jul 17, 2026
1 min read

The U.S. Department of Energy has announced a breakthrough in producing ultra-enriched silane (SiH4) at Oak Ridge National Laboratory, establishing a new domestic capability for manufacturing the isotopically purified silicon and germanium required for next-generation quantum computers.

The milestone directly addresses a critical supply-chain vulnerability: quantum processors depend on silicon-28 and germanium-74 isotopes to achieve the coherence times necessary for reliable computation, and the U.S. has historically relied on foreign sources for these materials. By re-establishing and modernizing its stable isotope enrichment capabilities at ORNL, the DOE's Office of Isotope R&D and Production aims to "silence the noise", isotopic impurities that cause decoherence in qubits, and build a resilient domestic pipeline for quantum information science.

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