10:15 AM - 10:30 AM
[21a-W521-4] Polymer LECs towards organic laser diodes; high-speed pulse operation for triplet issue
Keywords:organic semiconductor,ionic liquid,Light-emitting electrochemical cell
We studied the effect of the single-triplet annihilation (STA) in the light-emitting electrochemical cells (LECs). We found the STA was strongly observed at high current density region under 1 ms pulse operation, while the effect was reduced by operating the LEC with short pulse that is shorter than the lifetime of triplet exciton.