Novel Anthanthrone and Anthanthrene Co-polymers as p-Type Conjugated Semiconductors for Organic Photovoltaics

The design of advanced new generation conjugated materials with improved properties for photovoltaic applications has been the focus of research in recent years. This work reports on novel anthanthrone/anthracene and anthanthrene/anthracene co-polymers as p-type conjugated semiconductors in organic photovoltaics. The presence of anthracene component with the grafted alkyloxy chains enhanced the solubility and process-ability of the co-polymers. The photophysical and photovoltaic parameters greatly depend on ratio of components of the co-polymers and nature of the grafted chains. Devices using the blends of SV15 and PCBM in 1:2 ratio gave J
_sc
3.97 mA/cm
²
and high V
_oc
0.92 V with efficiency 1.7%.