| 초록 |
In this research, poly[(9,9-bis((6’-(N,N,N-trimethylammonium)hexyl)-2,7-fluorene)-alt-(9,9-bis(2-(2-methoxyethoxy)ethyl)-fluorene)] dibromide (WPF-oxy-F) was synthesized and utilized for fabricating light-emitting electrochemical cells (LECs). This conjugated polymer with ionic groups can be used as a single material in the active layer of LEC device. Furthermore, with the ethylene oxide side chains on the polymer WPF-oxy-F, small amount of Li salt can be added without inserting any polymer which dissociates the salt through the complication. We anticipate that adding Li salt with small and highly mobile cations will induce higher electric fields leading to higher absolute current and luminance, and higher efficiencies. |
