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Two oligothiophene based small molecules (DINER5T and DINER7T) with a new end group INER were synthesized as the donors for organic solar cells, and their photovoltaic performance was studied and compared with the corresponding compounds (DRHD7T and DIN7T) with the same backbone structure but different end groups. Both of the new molecules exhibit broad and red shift absorption compared with DRHD7T...
Two new small molecules, namely DRSBDTT-EH and DRSBDTT-BO, with alkylthio thienyl substituted benzodithiophene as the central unit and 3-ethylrhodanine as end groups, were designed and studied as the donors for solution processed organic solar cells. The optimized device based on DRSBDTT-EH bearing shorter alkylthio chain gave a power conversion efficiency (PCE) of 8.78%, which is slightly higher...
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