DIFLUORO BENZOTRIAZOLYL ORGANIC SEMICONDUCTOR MATERIAL AND PREPARATION METHOD AND USE THEREOF
申请人:Ocean's King Lighting Science&Technology Co., Ltd.
公开号:EP2759558A1
公开(公告)日:2014-07-30
The present invention relates to solar cells and discloses a difluoro benzotriazolyl organic semiconductor material and preparation method and use thereof. The organic semiconductor 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 organic semiconductor material, since the 1, 2, 3-benzotriazole organic semiconductor 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 organic semiconductor material.
本发明涉及太阳能电池,公开了一种二氟苯并三唑基有机半导体材料及其制备方法和用途。该有机半导体材料由式(I)表示、
其中 R1 和 R2 均为 C1 至 C20 烷基,n 为 10 至 50 的整数。在二氟苯并三唑有机半导体材料中,由于 1,2,3-苯并三唑有机半导体材料含有两个氟原子,因此 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吸电子能力的亚氨基;氟取代的 1,2,3-苯并三唑是一种具有较强吸电子能力的杂环化合物,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,从而解决有机半导体材料制成的太阳能电池效率低的问题。