A feasible synthetic route to alkoxy-substituted DTBDT was designed and the first DTBDT-based polymer was prepared and applied in organic solar cells. The preliminary results indicate that the DTBDT unit can be used as a potential building block in organic semiconductor materials.
![Graphical abstract: Synthesis and application of dithieno[2,3-d:2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene in conjugated polymer](http://hg.y866.cn/compound/lib/scimg/usr/1/C2JM34629J.jpg)
