Selenophene-fluorene copolymers

Cao and co-workers synthesized random (63a-e) and alternate (63f) selenophene-fluorene copolymers and performed comparative studies with their thiophene analogues 61a-e and 51a [101], Selenophene... 

Recently, Kim et al. reported that a FET using the copolymer of fluorene and selenophene, poly(9,9 -dioctylfluorene-a/t-biselenophene) (51), as an active layer exhibited a high hole mobiUty of 0.012 cm V s which is better than the performance of the fluorene and thiophene copolymer counterpart [104]. It is speculated that the high mobility of 51 is a result of the close molecular packing and the well-defined orientation of selenophene-containing polymer chains. 

R. Yand, R. Tian, Q. Hou, Y. Zhang, Y. Li, W. Yang, C. Zhang, Y. Cao, Light-emitting copolymers based on fluorene and selenophene - comparative studies with its sulfur analogue poly(fluorene-ct>-thiophene), J. Polym. 

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