| 摘要 |
<p>A composition comprising a copolymer comprising DTP units for use in, for example, low band gap materials including uses in organic photovoltaic active layers. The band gap and other properties can be engineered by copolymerization methods including selection of monomer structure and ratio of monomer components. In addition, a dimer adapted for making alternating copolymers further comprising one first monomer moiety comprising at least one DTP moiety compound covalently linked to one second monomer moiety comprising at least one non-DTP moiety or a different DTP moiety. The composition can be copolymerized to form an alternating copolymer that can be further processed to form a polymeric film used in a printed organic electronic device. A series of novel alternating dithieno[3,2-b:2',3'-d]pyrrole (DTP)-based donor repeat unit copolymers were designed that would allow fabrication of materials with tailor made electronic and/or mechanical properties that can be easily manipulated through molecules chemical structure and potentially result in long term stability under ambient conditions that can be advantageous for use in organic electronics (e.g., OPVs, OLEDs, OFETs).</p> |
