Se0.6Te0.4

Se₀.₆Te₀.₄ is a chalcogenide semiconductor alloy composed of selenium and tellurium in a 60:40 atomic ratio, belonging to the group VI elemental semiconductors family. This material is primarily of research and emerging device interest, used in infrared optics, thermoelectric applications, and phase-change memory prototyping where its tunable bandgap and thermal properties offer advantages over pure selenium or tellurium. Engineers select this alloy when bandgap engineering or optimized thermal conductivity in the infrared spectrum is critical, though it remains less mature than conventional semiconductors and is typically explored for specialized applications rather than high-volume manufacturing.