| abstract |
The invention relates to a bisindenofluorene conjugated polymer laser gain material and its preparation method and application. Segment copolymer, its structural general formula is as shown in the following formula: In the general formula I, R 1 and R 2 are one of C1-C30 alkyl, alkoxy, alkylphenyl and alkoxyphenyl, and A is an electron acceptor structural modification unit. The material has the advantages of low cost, simple and controllable synthesis, high yield, and good solubility. At the same time, this type of material has good thermal stability, reversible redox characteristics, and good film-forming performance. Simple solution can be used Thin-film devices are prepared by film formation. As an active light-emitting layer, it shows high brightness and excellent luminous efficiency in electroluminescent devices, and at the same time shows low laser threshold and high gain in organic laser devices. It is a class of Luminescent material systems with important application potential. |