three-dimensional (otherwise termed as non-linear) design, compared to one-dimensional (or linear) design, demonstrated (1) an enhancement of light-harvesting ability by about 50%; (2) an increase in wavelength of the longest wavelength absorption maximum of thin film (633 nm vs. 581 nm) and (3) a narrower optical band-gap (1.53 eV vs. 1.65 eV). Solution-processable bulk-heterojunction devices were fabricated with
通过采用三维分子几何学,设计,合成和表征了一种新颖的可溶液加工的小分子有机发色团,用于体异质结太阳能电池。新的发色团,[(5- Ž,5' Ž,5“ Ž)-5,5-',5” - (((次氮基三(苯-4,1-二基))三(
噻吩-5,2-二基) )tris(甲炔基)tris(1-(2-乙基己基)-4-甲基-2,6-二氧-1,2,5,6-四氢
吡啶-3-甲腈)](编码为3D)基于供体-受体(D-A)模块,其中简单的
三苯胺单元充当电子供体,
氰基吡啶酮作为电子受体,
噻吩单元作为嵌在供体和受体功能之间的π桥。的光电和光伏特性直接将3D与结构类似物[[ Z ] -5-((5-(4-(二苯
氨基)苯基)
噻吩-2-基)亚甲基)-1-(2-乙基己基)-4-甲基-2,6-二氧-1,2,5,6-四氢
吡啶-3-甲腈]],即1D。与一维(或线性)设计相比,三维(也称为非线性)设计表明(1)采光能力提高了约50%;(2)薄膜的最长波长吸收最大值的波长增加(633