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721077 Sigma-Aldrich

Zinc oxide, dispersion

nanoparticles, <100 nm particle size (TEM), ≤40 nm avg. part. size (APS), 20 wt. % in H2O



Related Categories 30: Zn, Materials Science, Metal and Ceramic Science, Nanomaterials, Nanoparticles: Materials by Application,
form   dispersion
concentration   20 wt. % in H2O
particle size   <100 nm (TEM)
avg. part. size   ≤40 nm (APS)
pH   7.5±1.5
density   1.7 g/mL±0.1 g/mL at 25 °C


General description

Zinc oxide, dispersion (ZnO) is a multi-function metal oxide with unique physio-chemical properties, which includes high chemical stability, broad range absorption spectra and high electrochemical characteristics. It can also be categorized as a semiconductor due to its high energy band width and high thermal stability that make it potentially useful in electronics and optoelectronics applications.


ZnO dispersions have piezo and pyroelectric properties that make it useful in the development of sensors, generators, and photo-catalysis. It has low toxicity and biocompatibility, which facilitate its applications in biomedicine.


100 g in glass bottle

Safety & Documentation

Safety Information

GHS09  GHS09
Signal word 
Hazard statements 
Precautionary statements 
UN 3082 9 / PGIII
WGK Germany 


Certificate of Analysis (COA)

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Protocols & Articles


Energy Harvesting Using Lead Zirconium Titanate-Based Ceramic Nanowires

Zhi Zhou1, Dr. Haixiong Tang1, Dr. Henry A. Sodano1,2* 1Department of Materials Science and Engineering 2Department of Mechanical and Aerospace Engineering University of Florida, Gainesville, Florida...
Keywords: Ceramics, Deposition, Diffraction, Electronics, Electrophoresis, Materials Science, Microscopy, Nanomaterials, PAGE, Solvents, Spectroscopy

Inverted Organic Photovoltaic Devices Using Zinc Oxide Nanocomposites as Electron Transporting Layer Materials

Bryce P. Nelson,1* Pengjie Shi,1 Wei Wei,1 Sai-Wing Tsang2 and Franky So3 1MilliporeSigma, 6000 N. Teutonia Ave., Milwaukee, WI, USA 53209 2Sai-Wing Tsang, Department of Physics and Materials Science...
Keywords: Adsorption, Crystallization, Diffusion, Materials Science, Nucleic acid annealing, Photovoltaics, Reductions, Sol-gel, Solar cells, Spectroscopy

Molybdenum Disulfide: Understanding Hydrogen Evolution Catalysis

Linyou Cao Department of Materials Science and Engineering Department of Physics North Carolina State University, Raleigh, NC, USA Email: lcao2@ncsu.edu
Keywords: Adsorption, Bacterial conjugations, Catalysis, Chemical industry, Chemical vapor deposition, Degradations, Deposition, Electrochemical reactions, Environmental, Indicators, Industries, Infrared spectroscopy, Materials Science, Nanotubes, Oxidations, Recombination, Renewable energy

Precise Nanoparticles for Optoelectronics Applications

Inorganic nanomaterials are tunable by size, shape, structure, and/or composition. Advances in the synthesis of well-defined nanomaterials have enabled control over their unique optical, electronic, ...
Benny Pacheco, Scott Kordyban
Material Matters Volume 7 Number 1
Keywords: Absorption, Bacterial conjugations, Deposition, Immobilization, Infrared spectroscopy, Materials Science, Microscopy, Nanomaterials, Scanning electron microscopy, Semiconductor, Sonication

Synthesis of ZnO Aggregates and Their Application in Dye-sensitized Solar Cells

Solar energy, as the primary source of energy for all living organisms on Earth, is considered the ultimate solution to the energy and environmental challenge as a carbon-neutral energy source. Many ...
Qifeng Zhang, Kwangsuk Park, Guozhong Cao
Material Matters 2010, 5.2, 32.
Keywords: Absorption, Adsorption, Atomic layer deposition, Calorimetry, Centrifugation, Chemical reactions, Degradations, Deposition, Diffraction, Diffusion, Environmental, Hydrogenations, Ligands, Materials Science, Photovoltaics, Precipitation, Recombination, Scanning electron microscopy, Semiconductor, Solar cells, Spectroscopy, X-Ray diffraction

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

Titania Nanotubes: Synthesis and Applications

Eugen Panaitescu1 and Latika Menon2 Department of Physics Northeastern University, Boston, MA 02115 USA Email: 1e.panaitescu@neu.edu, 2l.menon@neu.edu
Keywords: Adsorption, Agriculture, Antimicrobials, Apoptosis, Automotive, Calorimetry, Cosmetics, Degradations, Deposition, Diffusion, Electrochemical analysis, Environmental, Filtration, Melting, Nanotubes, Oxidations, Photovoltaics, Precipitation, Recombination, Redox Reactions, Reductions, Semiconductor, Separation, Sol-gel, Solar cells, Solvents

Peer-Reviewed Papers


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