the complex [Ir(ppy)2(bpy)][PF6] shows a broad emission band at 585nmwith a PLQY of 0.14 and excited-state lifetime of 0.43 μs. A similar emission profile is observed in the EL emission(Figure 15.4a), which indicates that the emitting excited state is the same for both processes. Although this phenomenon is very common, the EL emission of Ir-iTMCs with phen as ancillary ligand is strongly redshifted compared to the emission in solution (Figure 15.4b). Photophysical and theoretical studies indicate that the phen ligand provides a complicated manifold of lowest triplet excited states close in energy. Hence, it is feasible that the relative order of the emitting triplet states changes on modifying the environment.
他這段解釋的是用鄰菲羅啉做配體和用二聯(lián)吡啶做配體測得電致發(fā)光比溶液熒光的波長紅移的原因，沒看懂，請高手解釋！


[ Last edited by lingx_125 on 2012-6-15 at 17:48 ] 返回小木蟲查看更多