Synthesis and photophysical properties of phosphorus(v) porphyrins functionalized with axial carbazolylvinylnaphthalimides
作者:Yong Zhan、Kaiyu Cao、Chenguang Wang、Junhui Jia、Pengchong Xue、Xingliang Liu、Xuemei Duan、Ran Lu
DOI:10.1039/c2ob26478a
日期:——
have synthesized new D-A-D type phosphorus(V) porphyrin derivatives 1 and 2 functionalized with axial carbazolylvinylnaphthalimide units. The absorption bands of the obtained phosphorus(V) porphyrins were in the range 250–640 nm with high molar absorption coefficients, meaning strong light-harvesting abilities. Notably, it is found that the devices based on phosphorus(V) porphyrins with a configuration
我们已经合成了新的DAD型磷(V)卟啉衍生物1和2,它们被轴向的咔唑基乙烯基萘二甲酰亚胺单元官能化。所获得的磷(V)卟啉的吸收带在250–640 nm范围内,具有高摩尔吸收系数,意味着很强的光收集能力。值得注意的是,发现具有[ITO / PEDOT:PSS /有机活性膜/ LiF / Al]的构型的基于磷(V)卟啉的器件具有入射光子-电流转换效率(IPCE)响应。 。基于化合物2的设备的最大IPCE值达到2.76%,远高于化合物1的0.20%。原因可能是由于化合物2中轴向单元的扩大共轭作用导致的低氧化电位和强大的集光能力。因此,我们推论在带有轴向共轭给体单元的磷(V)卟啉中发生了光诱导的电子转移,这使其成为可用于太阳能电池的光伏材料的良好候选者。