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481629

Sigma-Aldrich

Copper(I) selenide

greener alternative

99.95% trace metals basis

Synonym(s):

Cuprous selenide, Dicopper monoselenide, Dicopper selenide

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About This Item

Linear Formula:
Cu2Se
CAS Number:
20405-64-5
Molecular Weight:
206.05
EC Number:
243-796-7
MDL number:
MFCD00049908
UNSPSC Code:
12352300
PubChem Substance ID:
24871772
NACRES:
NA.23

Quality Level

100

Assay

99.95% trace metals basis

form

powder and chunks

greener alternative product characteristics

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

sustainability

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density

6.84 g/mL at 25 °C (lit.)

greener alternative category

Enabling,

SMILES string

[Cu][Se][Cu]

InChI

1S/2Cu.Se

InChI key

KTLOQXXVQYUCJU-UHFFFAOYSA-N

General description

Copper selenide is an ionic conductor. 1 In nature, it occurs as mineral berzelianite. 2 Copper selenide may be prepared galvanically by coupled copper metal oxidation and Se reduction in alkaline selenosulfate (Na2SeSO3).
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Application

Copper(I) selenide (Cu2Se) is a semiconductor material, which exists in cubic, tetragonal or orthorhombic forms. It forms thin films, which can be used as solar cell materials, optical filters, thermoelectric converters, electro-optical devices, and microwave shield coatings.

Packaging

Packaged in poly bottles

Signal Word

Danger

Hazard Statements

H301 + H331,H373,H410

Hazard Classifications

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

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Modified chemical deposition and physico-chemical properties of copper (I) selenide thin films
Pathan HM, et al.
Applied Surface Science, 211(1-4), 48-56 (2003)
High-temperature conductivity in chemical bath deposited copper selenide thin films
Dhanam M, et al.
Journal of Crystal Growth, 280(3-4), 425-435 (2005)
Phosphine-free synthesis of p-type copper (I) selenide nanocrystals in hot coordinating solvents
Deka S, et al.
Journal of the American Chemical Society, 132(26), 8912-8914 (2010)

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