Accurate detection and classification of substances and materials is critical for today’s ever-growing needs related to both automation and increased safety. Optical sensing technologies are at the ...

Scientists determine the smallest possible cubic lead sulfide cluster that exhibits the same coordination (a key structural property) as bigger bulk crystals. Lead sulfide (PbS) forms when an equal ...

Lead sulfide is an inorganic compound with the chemical formula PbS. It is also known as galena, which is the principal ore and important compound of lead. It is one of the earliest materials to be ...

Recent thermodynamic calculations by researchers at Washington University in St. Louis provide plausible evidence that "heavy metal snow," which blankets the surface of upper altitude Venusian ...

The Integrated Detector Assembly (IDA) lead selenide and lead sulfide high-sensitivity infrared detectors integrate their relevant electronics within a compact, hermetically sealed TO-8 package.