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【答案】应助回帖
两种结构的HOMO和LUMO能级是不一样的，会对载流子的注入产生影响,发光颜色也是不一样的。其它关于Alq3的研究则主要集中在光电器件的效率和稳定性上。2008年，Yuki Nagata 也模拟了amorphous Alq3载流子传输过程的研究表明其传输是一种跳跃机制，和电场与温度的关系是Poole-Frenkel机制，同年，J. J. Kwiatkowski 用Monte Carlo 模拟了amorphous Alq3,结果表明电子的迁移率为空穴的two orders ，但是他计算的迁移率与电场的关系不符合Poole-Frenkel机制，还有一些从理论上探讨对Alq3的配体进行不同取代对其光物理性质的影响的报道。在理论上对Alq3的传输特性的研究大多仅限于经式薄膜和β-晶相，还有一些结合态密度概念从定性的角度探讨其传输电子的高效性，以上这些研究都大多仅限于晶体。
The energy level of HOMO and LUMO of the two structures is not the same, which would influence the injection of the carrier, and their light color is not the same, either. Other studies on Alq3 mainly focused the efficiency and the stability of the photoelectric devices. In 2008, Yuki Nagata also simulated the transmission of amorphous Alq3 carrier which indicated that its transmission was a leaping mechanism, and its relation with electric field and temperature was Poole-Frenkel mechanism. In the same year, JJ Kwiatkowski used Monte Carlo to make an simulation of amorphous Alq3, which showed that the mobility of electron was two orders of the hole, but he found that the relation between the mobility and the electric field did not match the Poole-Frenkel mechanism. There were also reports which discussed theoretically the influence of the different substitution of the ligands of Alq3 on its photophysical properties. The theoretical study of the transmission characteristics of Alq3 are mainly restricted in the film andβ-crystalline phase. Besides, there are some other reserches which focus on the efficiency of transmit electrons combined with the state density from the qualitative point of view. Nevertheless, all the studies mentioned above are mostly limited to the crystal. |
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