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Germanium Substrates in Optoelectronics and High-Frequency Communications: Technical Barriers and Application Prospects

Germanium (Ge), as a Group IV semiconductor, has attracted sustained attention in optoelectronics and high-frequency communications due to its compatibility with silicon processing, high carrier mobility, and strong near-infrared absorption. However, the transition from laboratory to industrialization faces multiple technical barriers…

Mechanical Properties and High-Temperature Stability of Ruthenium Alloys: From Solid-Solution Strengthening to Extreme Environment Applications

Abstract:Ruthenium, a distinctive member of the platinum group metals, has emerged as an irreplaceable alloying element in advanced high-temperature structural materials. With a melting point of 2334°C, exceptional chemical inertness, and unique microstructural regulation capabilities, ruthenium serves as the defining…