Lead selenide (PbSe), or lead(II) selenide, a selenide of lead, is a semiconductor material. It forms cubic crystals of the NaCl structure; it has a direct bandgap of 0.27 eV at room temperature.

2022年10月28日 · PbSe-based thermoelectric materials exhibit promising ZT values at medium temperature, but its near-room-temperature thermoelectric properties are overlooked, thus restricting its average ZT...

2025年1月23日 · The insertion of an ultrathin PbSe layer induces oriented crystallization of Sb2S3, bi-directionally passivates interfacial defects, and optimizes the energy band alignment at the CdS/Sb2S3 interface...

2024年3月14日 · We demonstrate how removing lattice vacancies through a grid-design strategy switched PbSe from being useful as a medium-temperature power generator to a thermoelectric cooler.

2025年1月14日 · Detailed micro/nanostructural characterizations and first-principles calculations demonstrate that Cu-induced interstitial defects and nanoprecipitates simultaneously optimize electron and phonon...

In this paper, we report a systematic study of electronic structures and lattice dynamics of the lead chalcogenides PbX X=Te, Se, and S using first-principles density-functional-theory calculations and a direct force-constant method.

Polycrystalline lead selenide (PbSe) is a standard semiconductor detector with a sensitivity of between 1 µm and 5.2 µm. The resistance of photoconductive detectors depends on the incident light. PbSe has a particularly strong inner photoelectric effect: When infrared light reaches the lead selenide detector, the resistance is reduced.

2024年11月13日 · Thermoelectric materials enable efficient and clean conversion between heat and electricity, offering significant application prospects in waste heat recovery and solid-state cooling. Lead selenide (PbSe) is a more abundant and cost-effective alternative to PbTe with promising potential for mid-temperature applications.

PbSe crystallizes in the orthorhombic Pnma space group. The structure is two-dimensional and consists of two PbSe sheets oriented in the (0, 0, 1) direction. Pb2+ is bonded to five equivalent Se2- atoms to form a mixture of edge and corner-sharing PbSe5 square pyramids.

2020年2月2日 · To elucidate the chemical identity of this PbSe precursor, we collected nuclear magnetic resonance (NMR) spectroscopic and electrospray ionization mass spectrometry data on the precursor solution.