Unfortunately, this product does not have a Zeta potential measurement to test the surface charge. Generally, carboxylic acid surface functionalization leads to a negative charge.
900224
CdSe/ZnS core-shell type quantum dots
carboxylic acid functionalized, fluorescence λem 620 nm, 1 mg/mL in H2O
Synonym(s):
Fluorescent nanocrystals, QDs
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About This Item
Linear Formula:
CdSe/ZnS
UNSPSC Code:
26111700
NACRES:
NA.23
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form
dispersion
Quality Level
concentration
1 mg/mL in H2O
fluorescence
λem 620 nm
λem 620 nm±10 nm, quantum yield >50%
functional group
carboxylic acid
storage temp.
2-8°C
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Related Categories
1 of 4
This Item | 900222 | 900226 | 900221 |
|---|---|---|---|
| functional group carboxylic acid | functional group carboxylic acid | functional group carboxylic acid | functional group carboxylic acid |
| fluorescence λem 620 nm, λem 620 nm±10 nm, quantum yield >50% | fluorescence λem 580 nm, λem 580 nm±10 nm, quantum yield >50% | fluorescence λem 645 nm, λem 645 nm±10 nm, quantum yield >50% | fluorescence λem 540 nm, λem 540 nm±10 nm, quantum yield >50% |
| concentration 1 mg/mL in H2O | concentration 1 mg/mL in H2O | concentration 1 mg/mL in H2O | concentration 1 mg/mL in H2O |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| form dispersion | form dispersion | form dispersion | form powder |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C |
General description
Reactive group: Carboxylic acid.
Application
The organic layers 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 about 4 nm and they find applications in bioimaging and biosensing.[1][2][3]
Legal Information
Product of Ocean Nanotech, LLC.
hcodes
pcodes
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
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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
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 offer design and synthesis strategies, enhancing bioimaging and sensing applications.
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이 제품의 표면전하가 얼마인가요?
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What is the exact size of this QD?
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The particle size for this item is 7.9 nm
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What is the absorption spectrum of this quantum dot
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As listed on the product detail page in the PROPERTIES section, the absorption spectrum for this product is as follows: λem 620 nm±10 nm, quantum yield >50%
See the image below for additional absorption data provided by the supplier, Ocean NanoTech.Helpful?
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