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Merck
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重要文件

254231

Sigma-Aldrich

硒化铅(II)

greener alternative

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About This Item

線性公式:
PbSe
CAS號碼:
分子量::
286.16
EC號碼:
MDL號碼:
分類程式碼代碼:
26111700
PubChem物質ID:
NACRES:
NA.23
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化驗

99.99%

環保替代產品特色

Design for Energy Efficiency
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sustainability

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密度

8.1 g/mL at 25 °C (lit.)

環保替代類別

SMILES 字串

[Se]=[PbH2]

InChI

1S/Pb.Se

InChI 密鑰

GGYFMLJDMAMTAB-UHFFFAOYSA-N

一般說明

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.[1] Heat capacity of PbSe was evaluated by Kelley-Parks-Huffman method.[2]
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應用

Lead selenide may be used to prepare PbSe/CdSe core/shell nanocrystal quantum dots (NQDs) applications such as infrared lasers and biological labels.[3] Other applications may be as photodetectors.[1]

包裝

塑料瓶包装

訊號詞

Danger

危險分類

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

儲存類別代碼

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

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable

個人防護裝備

dust mask type N95 (US), Eyeshields, Gloves


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分析證明 (COA)

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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
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)
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
Fangyu Yue et al.
Optics express, 21(2), 2287-2296 (2013-02-08)
Silicate- and borosilicate-based PbS:glass material and borosilicate-glass-based fibers are fabricated and analyzed. Optical properties including absorption and emission are characterized and related to growth and annealing conditions. In silicate glasses PbS volume fractions of exceeding 0.4 percent and almost octave-spanning
Wan Ki Bae et al.
Journal of the American Chemical Society, 134(49), 20160-20168 (2012-11-08)
PbSe nanocrystal quantum dots (NQDs) are a promising active material for a range of optoelectronic devices, including solar cells, high-sensitivity infrared (IR) photodetectors, and IR-emitting diodes and lasers. However, device realization has been constrained by these NQDs' chemical instability toward

文章

Thermoelectric materials comprise a wide range of solid compounds distinguished by their ability to convert thermal and electrical energy.

熱電材料由多種固體化合物組成,以其轉換熱能和電能的能力而區別。

Questions

  1. What is the physical form of this material? I asuume it is a powder but what is the mesh/size characteristics?

    1 answer
    1. This product has an acceptable appearance specification of Powder or Granules or Chunk(s). The physical form is lot-specific and reported in the product Certificate of Analysis. The particle size is not determined given the variability of the form. The material is not screened and the particle size is not controlled.

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