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748129

Sigma-Aldrich

CdSe/ZnS core-shell type quantum dots

stabilized with octadecylamine ligands, fluorescence λem 580 nm, solid

Synonym(s):
Artificial atoms, Fluorescent nanocrystals, QDs
Linear Formula:
CdSe/ZnS

Quality Level

form

solid

fluorescence

λem 580 nm

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This Item
919144900217919330
form

solid

form

-

form

dispersion

form

liquid

fluorescence

λem 580 nm

fluorescence

FWHM 20-28 nm, λem 500 nm, , quantum yield ≥50%

fluorescence

λem 580 nm, λem 580 nm±10 nm, quantum yield >50%

fluorescence

FWHM 23-28 nm, λem 620 nm, , quantum yield ≥50%

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

Application

CdSe/ZnS core/shell nanocrystals in solid form are highly purified quantum dots. They can be dispersed in most non-polar organic solvents such as toluene, chloroform, hexane, etc. With very low organic impurity, these quantum dots are specifically designed as emitters for optoelectronic applications such as display and solid state lighting.

Protocol to make QD solutions (dispersing QDs into solutions):

1. Weigh desired amount of the quantum dot powder and put it in a glass vial;
2. Add desired amount of the solvent, i.e. toluene, chloroform, hexane, etc. (mostly non-polar organic solvents) in the vial and shake the vial;
3. If there is any solid left in the vial after shaking, sonicate the vial for 30~60 seconds to get the quantum dot powder well dispersed. If required dilute the solution further.

Material has a shelf life of around 3 years if stored properly. Store at room temperature (4-25 °C); do not freeze. Should not be exposed to extreme temperatures.

Legal Information

Product of Ocean Nanotech, LLC

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2 - STOT RE 2 - STOT RE 2 Oral

Supplementary Hazards

Storage Class Code

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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