Effect of different topological structures (D-π-D and D-π-A-π-D) on the optoelectronic properties of benzo[2,1-B:3,4-B́]dithiophene based donor molecules toward organic solar cells

Simulated absorption spectra of twelve donors based on D-π-D (a) and D-π-A-π-D (b) topologies with the Solar Flux for AM 1.5G. [Display omitted] •A comparative analysis of different shapes (star, π, H and X) and different topologies (D-π-D and D-π-A-πD) molecules is done.•DFT and TD-DFT calculations...

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