Formation of high quality titania, alumina and other metal oxide templated materials through coassembly
US11192796B2 · kind B2 · utility
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Key dates
| Filing date | Apr 3, 2017 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | May 19, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A co-assembly method for synthesizing inverse photonic structures is described. The method includes combining an onium compound with a sol-gel precursor to form metal oxide (MO) nanocrystals, where each MO nanocrystal has crystalline and amorphous content. The MO nanocrystals are combined with templating particles to form a suspension. A solvent is evaporated from the suspension to form an intermediate or compound product, which then undergoes calcination to produce an inverse structure.
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