| abstract |
The invention relates to three novel copolymer complexes BDTT-BET-Zn, BDTT-BET-Cu and BDTT-BET-Ni with benzodithiophene derivatives as ligands shown in formula 1, which are used as dye-sensitized solar cells The dye sensitizer in , using benzodithiophene derivative BDTT as electron donor D, using 2,7-dibromo-4,5-diethoxy-[2,1-b:3,4-b The complex formed by the coordination of ']-dithiophene and metal is an auxiliary electron acceptor A', and 2-cyano-3-(8-hydroxyquinoline-5-yl) acrylic acid is used as electron acceptor, π bridge and anchor D-A'-π-A type polymer complex synthesized by Yamamoto coupling reaction, the experiment based on this type of polymer complex dye sensitizer dye-sensitized solar cells showed good photovoltaic performance test Effects: The photoelectric conversion efficiencies are 10.01%, 8.25%, and 6.91%, respectively, and the thermal decomposition temperature is above 243°C, with good thermal stability, which will have certain prospects in the development and application of dye-sensitized solar cells; |