Investigation of 3,4-ethylenedioxythiophene and 3,4-dimethoxythiophene as linkage units for multi-dimensional dimeric acceptors

Organic solar cell utilizing the 3D dimeric acceptor CH8-9, which features a 3,4-dimethoxythiophene linkage unit, achieved a higher power conversion efficiency of 16.3% compared to CH8-8, which employs a 3,4-ethylenedioxythiophene linkage unit.