| 摘要 |
PROBLEM TO BE SOLVED: To provide a polymer which can be used in a p-type material for an organic electronic element and a photovoltaic cell.SOLUTION: A polymer includes a structure represented by formula (I). In the formula, the R group can provide solubility, environmental stability, and fine tuning of spectroscopic and/or electronic characteristics. Different polymer microstructures which encourage multiple band gaps and broad and strong absorptions can be prepared. In the formula, the carbonyl can interact with adjacent thiophene rings to provide a backbone with rigidity, induce planarity, and reduce and/or eliminate intramolecular chain twisting defects. |
