WAVELENGTH-CONVERSION ENCAPSULANT COMPOSITION, WAVELENGTH-CONVERTED ENCAPSULANT LAYER, AND SOLAR CELL MODULE USING SAME

摘要

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.

主权项

1. A wavelength-converting encapsulant composition, comprising:
a first organic material capable of absorbing ultraviolet light and converting absorbed light to light with a wavelength longer than that of the absorbed 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 light with a wavelength longer than that of the absorbed light, wherein the first organic material and the second organic material have a maximum emission wavelength λ1em and a maximum excitation wavelength λ2ex, respectively, satisfying the relationship of formula (1): λ1em−60≦λ2ex (nm).