Low-reflection coating, glass sheet, glass substrate, and photoelectric conversion device
US10600923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2015 |
| Grant date | Mar 24, 2020 |
| Priority date | — |
| Expiry date | Sep 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The low-reflection coating of the present invention is adapted to be provided on at least one principal surface of a substrate. The low-reflection coating is a porous film having a thickness of 80 to 800 nm, the porous film including: fine silica particles being solid and spherical and having an average particle diameter of 80 to 600 nm; and a binder containing silica as a main component and containing a hydrophobic group, the fine silica particles being bound by the binder. The low-reflection coating contains 35 to 70 mass % of the fine silica particles, 25 to 64 mass % of the silica of the binder, and 0.2 to 10 mass % of the hydrophobic group of the binder. The low-reflection coating produces a transmittance gain of 1.5% or more when provided on the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.