Yissum - Research Development Company of the Hebrew University

Nanoparticle Coatings Based on Hydrogen Peroxide Sol-Gel Processing of Metal Oxides

Posted by Yissum - Research Development Company of the Hebrew UniversityResponsive · Innovative Products and Technologies · Israel

Summary of the technology

Cluster2
Platform technology for wet chemistry coatings of oxides
Keywords: process, wet chemistry, batteries, transition metals,
Project ID : 9-2010-2490

Yissum - Research Development Company of the Hebrew University

Description of the technology

Background

  • Antimony tin oxide is one of the most widely used transparent conducting oxides, mainly because of its two chief properties: electrical conductivity and optical transparency, which are important for optoelectronic devices, such as in flat-panel displays and solar cells.
  • Current methods for particle and nano-particle tin oxide formation&surface coatings employ acidic media. However, the important need of coating acid-sensitive materials with nano-particulate antimony-doped tin oxide (ATO) films is still a challenge.

Our Innovation

Novel, Generic method for the coating of different surfaces, including acid-sensitive crystals (LiNbO3 and calcite) from an organic, ligand-free, stable hydroperoxostannate and -antimonate solution. This enables coating of minerals and acid-sensitive materials with conductive film.

Key Features

  • This method is useful for coating small entities since the ATO nano-particle formation takes place exclusively on surfaces, with no particle growth taking place in the solution.
  • Uniform coating of different clays and other irregular configurations by monosized 5 nm ATO particles was demonstrated from an organic ligand-free solution.

Figure:SEM (left) and TEM (right) micrographs of ATO-coated sepiolite (a and b),

porous sol-gel silica powder (c and d), and calcite (e and f). Five nm crystalline ATO particles are visible in the TEM figures.

The Applications

  • Doped tin oxide coatings can be employed for sensors, catalysis, smart (heated) windows, touch panel displays, voltage-dependent resistors, and LED devices, as well as solar cells and especially polymer solar cells.

Development Milestones

  • Seeking for Industry cooperation

Project manager

Matt Zarek
VP, BUSINESS DEVELOPMENT

Project researchers

Ovadia Lev
HUJI, Faculty of Science
The Institute of Chemistry

Related keywords

  • Chemistry
  • Materials Technology
  • Nanotechnologies related to electronics & microelectronics
  • Micro and Nanotechnology related to Electronics and Microelectronics
  • Electronics, Microelectronics
  • Environment
  • Waste Management
  • Clean Production / Green Technologies
  • Chemicals and Materials
  • Some other electronics related
  • Pollution and Recycling Related
  • Chemistry & Materials
  • nanoparticles

About Yissum - Research Development Company of the Hebrew University

Technology Transfer Office from Israel

Yissum Research Development Company of the Hebrew University of Jerusalem Ltd. Founded in 1964 to protect and commercialize the Hebrew University’s intellectual property. Ranked among the top technology transfer companies, Yissum has registered over 8,900 patents covering 2,500 inventions; has licensed out 800 technologies and has spun-off 90 companies. Products that are based on Hebrew University technologies and were commercialized by Yissum generate today over $2 Billion in annual sales.

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