Lead selenide
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. (Note that incorrectly identifies PbSe and other IV–VI semiconductors as indirect gap materials.) A grey solid, it is used for manufacture of infrared detectors for thermal imaging. The mineral clausthalite is a naturally occurring lead selenide.
| Names | |
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| Other names
Lead(II) selenide Clausthalite | |
| Identifiers | |
3D model (JSmol) |
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| ECHA InfoCard | 100.031.906 |
| EC Number |
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PubChem CID |
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CompTox Dashboard (EPA) |
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SMILES
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| Properties | |
| PbSe | |
| Molar mass | 286.16 g/mol |
| Melting point | 1,078 °C (1,972 °F; 1,351 K) |
| Structure | |
| Halite (cubic), cF8 | |
Space group |
Fm3m, No. 225 |
a = 6.12 Angstroms | |
| Octahedral (Pb2+) Octahedral (Se2−) | |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H301, H302, H331, H332, H360, H373, H410 | |
| P201, P202, P260, P261, P264, P270, P271, P273, P281, P301+P310, P301+P312, P304+P312, P304+P340, P308+P313, P311, P312, P314, P321, P330, P391, P403+P233, P405, P501 | |
| Related compounds | |
Other anions |
Lead(II) oxide Lead(II) sulfide Lead telluride |
Other cations |
Carbon monoselenide Silicon monoselenide Germanium(II) selenide Tin(II) selenide |
Related compounds |
Thallium selenide Bismuth selenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
It may be formed by direct reaction between its constituent elements, lead and selenium.
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