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US 7,842,352 B2Granted
Nanoparticle coatings and methods of making
AssigneeMassachusetts Institute of Technology
InventorsZekeriyya Gemici, Michael F. Rubner, Robert E. Cohen
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Abstract
A surface can be treated to deposit a superhydrophilic coating on a surface that can be antireflective and antifogging. The coating can remain antireflective and antifogging for extended periods. The coating can include oppositely charge inorganic nanoparticles, and can be substantially free of an organic polymer. The coating can be made mechanically robust by a hydrothermal calcination.
Claims13
A method of treating a surface comprising:
- depositing a first plurality of inorganic nanoparticles having a first electrostatic charge on a substrate;
- depositing an oppositely charged polyelectrolyte over the first plurality of inorganic nanoparticles;
- and
- contacting the first plurality of inorganic nanoparticles and the oppositely charged polyelectrolyte at a calcination temperature less than 500° C. with a calcination reagent selected to promote fusing of nanoparticles and polyelectrolytes at a calcination temperature less than 500° C.
1 more element
Dependencies are inferred from the claim text.