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Sigma-Aldrich

Lumidot™ CdSe

640, core-type quantum dots, 5 mg/mL in toluene

Synonym(s):

Cadmium monoselenide, Cadmium selenide

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About This Item

Empirical Formula (Hill Notation):
CdSe
CAS Number:
1306-24-7
Molecular Weight:
191.37
MDL number:
MFCD00010917
UNSPSC Code:
26111700
PubChem Substance ID:
329760229

Quality Level

200

form

dispersion

concentration

5 mg/mL in toluene

particle size

6.2-7.7 nm

λmax

615-625 nm

fluorescence

λem 635-645 nm

storage temp.

2-8°C

InChI

1S/Cd.Se

InChI key

AQCDIIAORKRFCD-UHFFFAOYSA-N

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General description

Organically stabilized cadmium selenide quantum dots in toluene

Application

Commercial Volumes of Quantum Dots: Controlled Nanoscale Synthesis and Micron-Scale Applications

Analysis Note

Particle size was determined by TEM according to the procedure of Yu, W. W., et al., Chem. Mater., 2003, 15, 2854.
Quantum yield was measured following the procedure of Qu, L., Peng, X., J. Am. Chem. Soc., 2002, 124-2049.

Other Notes

Lifetime one year if stored properly

Legal Information

Product of Nanoco Technologies sold under US and worldwide patents and patents pending.
Lumidot is a trademark of Sigma-Aldrich Co. LLC

Signal Word

Danger

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3

Target Organs

Central nervous system, Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

39.2 °F

Flash Point(C)

4 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

EU REACH Annex XVII (Restriction List)

CAS No.

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Certificates of Analysis (COA)

Lot/Batch Number
MKBP6334V
MKBM7968V
MKBJ9381V
MKBH8232V
MKBH8232

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Yuanyuan Wang et al.
Inorganic chemistry, 52(6), 2933-2938 (2013-03-06)
Four [(CdSe)13(RNH2)13] derivatives (R = n-propyl, n-pentyl, n-octyl, and oleyl) are prepared by reaction of Cd(OAc)2·2H2O and selenourea in the corresponding primary-amine solvent. Nanoclusters grow in spontaneously formed amine-bilayer templates and are characterized by elemental analysis, IR spectroscopy, UV-vis spectroscopy
Shancheng Yan et al.
Journal of nanoscience and nanotechnology, 13(1), 23-32 (2013-05-08)
Semiconducting nanowire heterostructures are of particular interest because of their fascinating properties and potential applications in the field of nanoscale science. CdS, with a direct bandgap of 2.42 eV, is considered to be an excellent material for various optoelectronic applications
Svetlana V Kilina et al.
Physical review letters, 110(18), 180404-180404 (2013-05-21)
Quantum confinement can dramatically slow down electron-phonon relaxation in nanoclusters. Known as the phonon bottleneck, the effect remains elusive. Using a state-of-the-art time-domain ab initio approach, we model the observed bottleneck in CdSe quantum dots and show that it occurs
Bryan T Spann et al.
Optics express, 21 Suppl 1, A15-A22 (2013-02-15)
Ultrafast time-resolved absorption spectroscopy is used to investigate exciton dynamics in CdSe nanocrystal films. The effects of morphology, quantum-dot versus quantum-rod, and preparation of nanocrystals in a thin film form are investigated. The measurements revealed longer intraband exciton relaxation in
Shan Liang et al.
Optics express, 21(3), 3253-3258 (2013-03-14)
The CdS/SiO(2) core/shell nanowires (NWs) with controlled shell thickness were successfully synthesized and subsequently heat-treated at 500 °C. The influences of silica shell coating and annealing processes on their optical properties have been investigated. Compared with original CdS NWs, the
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