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Merck

254231

Sigma-Aldrich

Lead(II) selenide

greener alternative

99.99%

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About This Item

Fórmula lineal:
PbSe
Número de CAS:
Peso molecular:
286.16
EC Number:
MDL number:
UNSPSC Code:
26111700
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

99.99%

greener alternative product characteristics

Design for Energy Efficiency
Learn more about the Principles of Green Chemistry.

sustainability

Greener Alternative Product

density

8.1 g/mL at 25 °C (lit.)

greener alternative category

SMILES string

[Se]=[PbH2]

InChI

1S/Pb.Se

InChI key

GGYFMLJDMAMTAB-UHFFFAOYSA-N

General description

Lead selenide has cubic rocksalt crystal structure which undergoes transition at high pressures to orthorhombic structure.2 PbSe is a semiconductor material that emits infrared radiation. Heat capacity of PbSe was evaluated by Kelley-Parks-Huffman method.
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Application

Lead selenide may be used to prepare PbSe/CdSe core/shell nanocrystal quantum dots (NQDs) applications such as infrared lasers and biological labels. Other applications may be as photodetectors.

Packaging

Packaged in poly bottles

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Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Repr. 1A - STOT RE 2

Storage Class

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Utilizing the lability of lead selenide to produce heterostructured nanocrystals with bright, stable infrared emission.
Pietryga JM, et al.
Journal of the American Chemical Society, 130(14), 4879- 4885 (2008)
Elena V Ushakova et al.
ACS nano, 6(10), 8913-8921 (2012-09-14)
We report on an anomalous size dependence of the room-temperature photoluminescence decay time from the lowest-energy state of PbS quantum dots in colloidal solution, which was found using the transient luminescence spectroscopy. The observed 10-fold reduction in the decay time
Jun Yang et al.
ACS nano, 6(9), 8120-8127 (2012-08-07)
Measurements of the picosecond-time-scale dynamics of photoexcited electrons in PbSe nanorods are reported. The intraband (1Π → 1Σ) relaxation occurs with a time constant of ~500 fs, which corresponds to a fast energy-relaxation rate of ~0.6 eV/ps. The biexciton lifetime
Investigation into the mechanism of oxidation on the surface of lead selenide semiconductor structures
Popov VP, et al.
Glass Phys. Chem., 29(5), 494-500 (2003)
Yunan Gao et al.
ACS nano, 6(11), 9606-9614 (2012-10-20)
The assembly of quantum dots is an essential step toward many of their potential applications. To form conductive solids from colloidal quantum dots, ligand exchange is required. Here we study the influence of ligand replacement on the photoconductivity of PbSe

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