WAVELENGTH-CONVERSION ENCAPSULANT COMPOSITION, WAVELENGTH-CONVERTED ENCAPSULANT LAYER, AND SOLAR CELL MODULE USING SAME
申请人:Nitto Denko Corporation
公开号:EP3065182A1
公开(公告)日:2016-09-07
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.
本发明提供了一种波长转换封装剂组合物,它包括能够吸收紫外光并将吸收的光转换为长波长光的第一有机材料;以及能够吸收波长长于第一有机材料吸收的光并将吸收的光转换为长波长光的第二有机材料,其中第一有机材料的最大发射波长λ1em和第二有机材料的最大激发波长λ2ex满足式(1)的关系:λ1em-60≤λ2ex(nm),并且具有高耐久性,在成本方面具有优势,适合用于太阳能电池,并且可以通过将不可用于发电的波长区域的光转换为可用于发电的另一波长区域的光来提高太阳能电池的光电转换效率。