D-π-A结构基于对分子内光生电子传输的增强作用而成为了敏化太阳能电池(dye sensitized solar cells,DSSCs)敏化剂设计的主要出发点.D-A-π-A结构的敏化剂是从D-π-A结构出发,在敏化剂的内部引入附加的吸电子基团作为内部电子受体而设计出来的,相比于传统的D-π-A结构敏化剂在性能上具有更大的优势.综述了2012年以来科学家对D-A-π-A结构敏化剂的分子设计及其在DSSCs中的应用性能的研究成果.
The donor-π bridge-acceptor(D-π-A) configuration becomes mainstream in the design of organic sensitizers due to its enhancement of the intramolecular photo-generated charge-transfer. On the basis of traditional D-π-A structure, researchers incorporate additional electron-withdrawing unites into the π bridge as internal acceptor, termed as D-A-π-A configuration, which displays better performance. This review summarizes the molecular design(since 2012) of sensitizers based on D-A-π-A configuration and their application in the dye sensitized solar cells.