Skip to Content
MilliporeSigma
All Photos(1)

Key Documents

900221

Sigma-Aldrich

CdSe/ZnS core-shell type quantum dots

carboxylic acid functionalized, fluorescence λem 540 nm, 1 mg/mL in H2O

Synonym(s):

Fluorescent nanocrystals, QDs

Sign Into View Organizational & Contract Pricing

Select a Size

1 ML
$166.00

$166.00

Available to ship onApril 15, 2025Details

Request a Bulk Order
All Photos(1)

Select a Size

Change View
1 ML
$166.00

About This Item

Linear Formula:
CdSe/ZnS
UNSPSC Code:
26111700
NACRES:
NA.23

$166.00

Available to ship onApril 15, 2025Details

Request a Bulk Order

form

powder

Quality Level

100

concentration

1 mg/mL in H2O

fluorescence

λem 540 nm
λem 540 nm±10 nm, quantum yield >50%

functional group

carboxylic acid

storage temp.

2-8°C

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Reactive group: Carboxylic acid.

Application

The organic layer of the CdS/ZnS or CdSe/ZnS quantum dots (QDs) with carboxylic acid as reactive group consist of a monolayer of oleic acid/octadecylamine and a monolayer of amphiphilic polymer. The total thickness of organic layers on these QDs is approximately 4 nm. They find many applications in bioimaging and biosensing.[1][2][3]

Caution

Do not freeze.

Legal Information

Product of Ocean Nanotech, LLC.

pictograms

Environment
GHS09

hcodes

H411

Hazard Classifications

Aquatic Chronic 2

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCX5535
MKCX2454
MKCT4336
MKCT0764
MKCS1025

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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
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
Bright, multicoloured light-emitting diodes based on quantum dots.
Sun Q, et al.
Nature Photonics, 1, 717-722 (2007)

Articles

Cadmium-free Quantum Dots for Bioimaging

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

Questions

1–2 of 2 Questions  

  1. What is the extinction co-efficient of this QD?

    1 answer

    1. Unfortunately, the extinction coefficient of this product is not determined.

      Helpful?

  2. What is the particle size?

    1 answer

    1. The particle size of the CdSe/ZnS core-shell type quantum dots are as follows:
      Core diameter - 2.8nm
      Shell thickness - 1.4nm
      Core/Shell - 5.6nm

      Helpful?

Reviews

No rating value

Active Filters

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

Contact Technical Service