Efficient synthesis and photovoltaic properties of highly rigid perylene-embedded benzothiazolyls†
Abstract
Perylene-embedded benzothiazolyls, designed by 2D-fusing of dithienylbenzothiadiazoles (DTBT), have been synthesized and characterized for organic photovoltaic (OPV) applications. A new polymer based on the newly-developed electron-accepting building block exhibits excellent solubility, stability, and photoabsorbability with optimal bandgaps and frontier orbitals, achieving a power efficiency up to 3.22%.