Tailoring D-π-A architectures with hybridized local and charge transfer fluorophore exhibiting high electroluminescence exciton utilization and low threshold amplified spontaneous

For the organic laser materials which could both use 25% singlet and 75% triplet excitons as the energy source, there’s a trade-off between the high radiative rate of the local-excited state and high exciton utilization of the charge-transfer state.