Tunable optical gap at a fixed lattice constant in group-IV semiconductor alloys

V R D'Costa1, Y-Y Fang, J Tolle

  • 1Department of Physics, Arizona State University, Tempe, Arizona 85287-1504, USA. vdcosta@asu.edu

Summary

New Germanium-Silicon-Tin (GeSiSn) alloys offer tunable light absorption for silicon photonics and photovoltaics. This breakthrough decouples electronic properties from lattice structure, enabling novel device applications.

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