Pb0.99Ge0.01Se

Pb0.99Ge0.01Se is a lead selenide (PbSe) semiconductor with minor germanium doping, belonging to the IV–VI narrow-bandgap semiconductor family. This material is primarily investigated for infrared detection and thermal imaging applications, where its narrow bandgap enables sensitivity in the mid- to long-wave infrared spectrum. Lead selenide compounds are valued in defense, medical thermography, and night-vision systems because they outperform silicon and III–V semiconductors in the 2–15 μm range, though the germanium alloying fraction here is experimental and likely used to fine-tune bandgap or carrier properties for specific detector performance.