DIFLUORO BENZOTRIAZOLYL SOLAR CELL MATERIAL AND PREPARATION METHOD AND USE THEREOF
申请人:Ocean's King Lighting Science&Technology Co., Ltd.
公开号:EP2711382A1
公开(公告)日:2014-03-26
The present invention relates to solar cells and discloses a difluoro benzotriazolyl solar cell material and preparation method and use thereof. The solar cell material is represented by formula (I),
wherein both R1 and R2 are C1 to C20 alkyl, and n is an integer from 10 to 50. In the difluoro benzotriazolyl solar cell material, since the 1, 2, 3-benzotriazole solar cell material contains two fluorine atoms, the HOMO energy level is reduced by 0.11eV, while the fluorine-substituted 1, 2, 3-benzotriazole has two imido groups with electron-withdrawing ability; the fluorine-substituted 1, 2, 3-benzotriazole is a heterocyclic compound with strong electron-withdrawing ability, and an alkyl chain can be easily introduced to the N-position of the N-H bond of the benzotriazole. The functional group of the alkyl chain can improve the solar energy conversion efficiency, thus solving the low efficiency problem of solar cells made of the solar cell material.
本发明涉及太阳能电池,公开了一种二氟苯并三唑太阳能电池材料及其制备方法和用途。该太阳能电池材料由式(I)表示、
其中,R1 和 R2 均为 C1 至 C20 烷基,n 为 10 至 50 的整数。在二氟苯并三唑太阳能电池材料中,由于 1,2,3-苯并三唑太阳能电池材料含有两个氟原子,HOMO 能级降低了 0.11eV,而氟取代的 1,2,3-苯并三唑具有两个具有抽电子能力的亚氨基;氟取代的 1,2,3-苯并三唑是一种抽电子能力很强的杂环化合物,在苯并三唑的 N-H 键的 N 位上很容易引入烷基链。烷基链的官能团可以提高太阳能转换效率,从而解决太阳能电池材料制成的太阳能电池效率低的问题。