Omnidirectional polarization independent all-dielectric light trapping scheme
US11844228B2 · kind B2 · utility
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Key dates
| Filing date | Oct 10, 2019 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Apr 6, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/549
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A leaf inspired biomimetic light trapping scheme for ultrathin flexible graphene silicon Schottky junction solar cell. An all-dielectric approach comprising of lossless silica and titania nanoparticles is used for mimicking the two essential light trapping mechanisms of a leaf: (1) focusing and waveguiding and (2) scattering. The light trapping scheme uses two optically tuned layers and does not require any nano-structuring of the active silicon substrate, thereby ensuring that the optical gain is not offset due to recombination losses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.