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900735

Sigma-Aldrich

PbS core-type quantum dots

oleic acid coated, fluorescence λem 1100 nm, 10 mg/mL in toluene

Synonyme(s) :

Fluorescent nanocrystals, Lead sulfide, PbS QDs

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About This Item

Formule linéaire :
PbS
Numéro CAS:
Code UNSPSC :
12352302
Nomenclature NACRES :
NA.23

Niveau de qualité

Forme

liquid

Concentration

10 mg/mL in toluene

Fluorescence

λem 1100 nm

Température de stockage

2-8°C

InChI

1S/Pb.H2S/h;1H2

Clé InChI

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).

Mention d'avertissement

Danger

Classification des risques

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

Organes cibles

Central nervous system

Code de la classe de stockage

3 - Flammable liquids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

46.4 °F - closed cup

Point d'éclair (°C)

8 °C - closed cup


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

Highly efficient quantum dot near-infrared light-emitting diodes.
Gong X, et al.
Nature Photonics, 10, 253-257 (2016)
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
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

Articles

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

Professor Sharma and colleagues review the synthesis and applications of this novel material. This includes a discussion of the unique properties of quantum dots and their suitability for solar cell applications, along with common synthesis techniques used to develop these materials.

Professor Xiaohu Gao (University of Washington, USA) provides a overview of recent quantum dot (QD) advancements and their potential for advancing bioassay and bioimaging technologies.

Perovskite quantum dots research progresses overcoming challenges, enabling rapid development of light-emitting devices.

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