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Key Documents

900727

Sigma-Aldrich

PbS core-type quantum dots

fluorescence λem 1600 nm, 10 mg/mL in toluene

Synonym(s):

Fluorescent nanocrystals, Lead sulfide, PbS QDs

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About This Item

Linear Formula:
PbS
CAS Number:
1314-87-0
UNSPSC Code:
12352302
NACRES:
NA.23

form

liquid

Quality Level

100

concentration

10 mg/mL in toluene

fluorescence

λem 1600 nm

storage temp.

2-8°C

InChI

1S/Pb.H2S/h;1H2

InChI key

MIXDRAMRMDOQJH-UHFFFAOYSA-N

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Application

The size for our lead sulfide (PbS) quantum dots (QDs) varies between 2.5 to 8 nm and depending upon this, these QDs emit between 900-1600 nm. Our PbS QDs possess high quantum yield, sharp emission and exhibit narrow fluorescence band (full width at half maximum <100 nm), which make them suitable as light absorber or IR emitter in applications in solar cells, photodetectors and infrared light emitting diodes (LEDs).

Signal Word

Danger

Hazard Classifications

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

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

45.5 °F - closed cup

Flash Point(C)

7.5 °C - closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
MKCQ3075
MKCP4984
MKCM2452
MKCJ9249
MKCF4545

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Gerasimos Konstantatos et al.
Nature nanotechnology, 5(6), 391-400 (2010-05-18)
The detection of photons underpins imaging, spectroscopy, fibre-optic communications and time-gated distance measurements. Nanostructured materials are attractive for detection applications because they can be integrated with conventional silicon electronics and flexible, large-area substrates, and can be processed from the solution
Xinzheng Lan et al.
Advanced materials (Deerfield Beach, Fla.), 28(2), 299-304 (2015-11-19)
A solution-based passivation scheme is developed featuring the use of molecular iodine and PbS colloidal quantum dots (CQDs). The improved passivation translates into a longer carrier diffusion length in the solid film. This allows thicker solar-cell devices to be built
Highly efficient quantum dot near-infrared light-emitting diodes.
Gong X, et al.
Nature Photonics, 10, 253-257 (2016)

Articles

Quantum Dots for Electronics and Energy Applications

In this article, the properties of some of the new non-cadmium based QDs along with different applications of QDs are summarized.

Recent Advances in the Use of Cadmiumfree Quantum Dots for Bioimaging

Dr. Delehanty and researcher introduce recent advances in the use of cadmium-free quantum dots for bioimaging. Focus is placed on strategies that have emerged in the last five years for design, synthesis, and surface modifications of non-Cd quantum dots (QDs) for bioimaging and sensing applications.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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