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924326

Sigma-Aldrich

Copper indium sulfide zinc sulfide (CuInS2/ZnS) core/shell Quantum Dots

in toluene, fluorescence λem 650 nm, 1 mg/mL

Synonym(s):

CIS QD, Fluorescent Nanocrystals, QDs

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About This Item

Linear Formula:
CuInS2/ZnS
UNSPSC Code:
12352302
NACRES:
NA.23

Quality Level

100

concentration

in toluene
1 mg/mL

fluorescence

FWHM <125 nm
λem 650 nm
, quantum yield ≥40%

storage temp.

2-8°C

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General description

Copper indium sulfide zinc sulfide (CuInS2/ZnS) core/shell quantum dots are a heavy metal-free, high-performance alternative to cadmium-based quantum dots. CuInS2 QDs, as the I–III–VI ternary semiconductor nanocrystals contain two cations (Cu+ and In3+) and one anion (S2–). These QDs have unique photophysical properties; that make them superior to molecular dyes. Advantages of QDs include higher photostability, broad absorption spectrum, high extinction coefficients, and tunable optical and electronic properties.

CuInS2/ZnS quantum dots possess brilliant quantum yield and excellent long-term stability, and these non-toxic quantum dots lack the environmental hazards of cadmium-based quantum dots.

Application

  • Batteries
  • Photovoltaics
  • Light-emitting diodes
  • Fluorescent labeling
  • Sensing
  • Biological imaging systems

Caution

Do not freeze.

Signal Word

Danger

Hazard Classifications

Aquatic Chronic 3 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 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)

39.9 °F

Flash Point(C)

4.4 °C

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Low temperature synthesis of highly bright green emission CuInS2/ZnS quantum dots and its application in light-emitting diodes
Deng, et al.
Journal of alloys and compounds, 851, 155439-155439 (2021)

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