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900212

Sigma-Aldrich

CdSe/ZnS core-shell type quantum dots

stabilized with octadecylamine ligands, fluorescence λem 645 nm, solid

Sinónimos:

Fluorescent nanocrystals, QDs

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10 MG
$231.000

$231.000


Fecha estimada de envío30 de marzo de 2025


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10 MG
$231.000

About This Item

Fórmula lineal:
CdSe/ZnS
UNSPSC Code:
26111700
NACRES:
NA.23

$231.000


Fecha estimada de envío30 de marzo de 2025


Solicitar un pedido a granel

Quality Level

form

powder
solid

fluorescence

λem 645 nm
λem 645 nm±10 nm, quantum yield >50%

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General description

Reactive group: Octadecylamine.

Application

Highly purified CdSe/ZnS quantum dots with an octadecylamine surface contain extremely low free organic ligands and impurities. They are well suited for display, solid state lighting and solar cell applications. They can be used as an electroluminescence emitter in quantum dot based LEDs or embedded in a polymer matrix as the backlight of an LCD display. CdSe/ZnS quantum dots in solid form can be dispersed in most non-polar organic solvents such as toluene, chloroform, and hexane.[1][2][3]

Legal Information

Product of Ocean Nanotech, LLC.

signalword

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

target_organs

Kidney,Bone, Liver,Gastrointestinal tract,Immune system

supp_hazards

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Qingjiang Sun et al.
ACS nano, 3(3), 737-743 (2009-03-25)
Owing to their narrow bright emission band, broad size-tunable emission wavelength, superior photostability, and excellent flexible-substrate compatibility, light-emitting diodes based on quantum dots (QD-LEDs) are currently under intensive research and development for multiple consumer applications including flat-panel displays and flat
Bright, multicoloured light-emitting diodes based on quantum dots.
Sun Q, et al.
Nature Photonics, 1, 717-722 (2007)
Zhanao Tan et al.
Nano letters, 7(12), 3803-3807 (2007-11-03)
We report a multilayer solution-processed blue light-emitting diode based on colloidal core/shell CdS/ZnS nanocrystal quantum dots (QDs). At a low-operating voltage of 5.5 V, the device emits spectrally pure blue radiation at 460 nm with a narrow full-width-at-half-maximum bandwidth of

Artículos

Cadmium-free quantum dots for bioimaging offer design and synthesis strategies, enhancing bioimaging and sensing applications.

Questions

1–2 of 2 Questions  
  1. 900212, CdSe/ZnS core-shell type quantum dots Can we dispersed them in Water? Do they are stable in water?

    1 answer
    1. This product is not suitable for direct dispersion in water. It is recommended that these quantum dots be dispersed in chloroform containing a small drop of oleylamine.

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  2. What does "solid" mean? Is it a "block" of quantum dots? Is it quantum dots contained in a block of some material? If so, what material? Is there someone I can talk to about your quantum dots?

    1 answer
    1. "Solid" means 900212 (CdSe/ZnS core-shell type quantum dots) is in powder form. There is no block to separate the quantum dots. The octadecylamine reactive group on the surface may help to re-disperse the powder into solution. Please contact the local technical service for more details.

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