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748056 Sigma-Aldrich

CdSe/ZnS core-shell type quantum dots

stabilized with octadecylamine ligands, fluorescence λem 540 nm, solid

Synonym: Artificial atoms, Fluorescent nanocrystals, QDs

  • Linear Formula CdSe/ZnS



Related Categories Core-Shell Type Quantum Dots, Materials Science, Nanomaterials, Quantum Dots
form   solid
fluorescence   λem 540 nm



10, 25 mg in glass bottle


CdSe/ZnS core/shell nanocrystals in solid form are highly purified quantum dots. They can be dispersed in most non-polar organic solvents such as toluene, chloroform, hexane, etc. With very low organic impurity, these quantum dots are specifically designed as emitters for optoelectronic applications such as display and solid state lighting.

Protocol to make QD solutions (dispersing QDs into solutions):

1. Weigh desired amount of the quantum dot powder and put it in a glass vial;
2. Add desired amount of the solvent, i.e. toluene, chloroform, hexane, etc. (mostly non-polar organic solvents) in the vial and shake the vial;
3. If there is any solid left in the vial after shaking, sonicate the vial for 30~60 seconds to get the quantum dot powder well dispersed. If required dilute the solution further.

Material has a shelf life of around 3 years if stored properly. Store at room temperature (4-25 °C); do not freeze. Should not be exposed to extreme temperatures.

Legal Information

Product of Ocean Nanotech, LLC

Safety & Documentation

Safety Information

Signal word 
Supplemental Hazard Statements 
Contact with acids liberates toxic gas.
UN 3077 9 / PGIII
WGK Germany 


Certificate of Analysis

Certificate of Origin

Protocols & Articles


Highly Efficient Nanoscale Inorganic Light Harvesters for Dye-sensitized Solar Cells

Nam-Gyu Park School of Chemical Engineering and Department of Energy Science Sungkyunkwan University, Suwon 440-746, Republic of Korea Email: npark@skku.edu Phone: +82-31-290-7241. Fax: +82-31-290-72...
Keywords: Absorption, Adsorption, Deposition, Infrared spectroscopy, Recombination, Semiconductor, Separation, Solar cells, Spectroscopy

Quantum Dots

Core-Type Quantum Dots Core-Shell Quantum Dots Alloyed Quantum Dots Quantum Dots Applications
Keywords: Degradations, Diagnostic Imaging, Extinction coefficient, Materials Science, Photovoltaics, Recombination, Semiconductor, Solar cells

Recent Advances in Hybrid Halide Perovskites-based Solar Cells

Kuppuswamy Kalyanasundaram, Shaik. M. Zakeeruddin, Michaël Grätzel* Laboratory for Photonics and Interfaces (LPI) Swiss Federal Institute of Technology at Lausanne (EPFL) 1015 Lausanne, Switzerland *...
Kuppuswamy Kalyanasundaram, Shaik. M. Zakeeruddin, Michaël Grätzel
Material Matters, 2016, 11.1, 3
Keywords: Absorption, Atomic layer deposition, Capillary electrophoresis, Degradations, Deposition, Diffusion, Environmental, Infrared spectroscopy, Nanomaterials, Nanotubes, Nucleic acid annealing, Recombination, Semiconductor, Separation, Sol-gel, Solar cells, Solvents, Spectroscopy, Spin coating, Substitutions

Synthesis of Halide Perovskite Quantum Dots for Display Applications

School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, China *Email: hzzhong@bit.edu.cn
Qingchao Zhou, Feng Zhang, and Haizheng Zhong*
Material Matters, 2018, 13.1
Keywords: Crystallization, Electronics, Evaporation, Ligands, Materials Science, Nucleic acid annealing, Polymerization reactions, Purification, Solar cells, Solvents, Sonication

Thiolated gold nanoclusters: A new class of photosensitizers

Kevin Stamplecoskie, Yong-Siou Chen, Prashant V. Kamat* Radiation Laboratory and Department of Chemistry and Biochemistry University of Notre Dame, Notre Dame, Indiana, USA *Email: pkamat@nd.edu
Keywords: Absorption, Biochemistry, Diffraction, Ligands, Nanomaterials, Oxidations, Photovoltaics, Reductions, Solar cells, Spectroscopy, X-Ray diffraction

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