Wavelength-conversion encapsulant composition, wavelength-converted encapsulant layer, and solar cell module using same
US10505061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2014 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | Oct 4, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/542
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A wavelength-converting encapsulant composition is provided, which includes a first organic material capable of absorbing ultraviolet light and converting absorbed light to longer wavelength light; and a second organic material capable of absorbing light with a wavelength longer than that of the light absorbed by the first organic material and converting absorbed light to longer wavelength light, wherein the maximum emission wavelength λ1em of the first organic material and the maximum excitation wavelength λ2ex of the second organic material satisfy the relationship of formula (1): λ1em−60≤λ2ex (nm), and which has high durability, is advantageous in terms of cost and suitable for use on solar cells, and can improve the photoelectric conversion efficiency of solar cells by converting light in a wavelength region not contributable to power generation to light in another wavelength region contributable to power generation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.