激子

I.Two clearly different variations of the measured exciton lifetime in GaAs/AlGaAs system with well width are observed,and can be attributed to the change ofthe exciton effective volume and the overlap integral.

在GaAs/AlGaAs系统，我们观察到激子寿命随阱宽变化的两种明显不同的趋势，而在InGaAs/GaAs系统，测量结果发现，激子寿命几乎与阱宽无关。

The narrow band gap comonomer 2,1,3-benzothiadiazole acts as a powerful exciton trap which allows efficient energy transfer of the exciton from fluorene segment to benzothiazole unit in the copolymers.

其中，低能级的共聚单体2，1，3—苯噻唑在体系中充当激子陷阱，芴单元受激发而产生的激子会通过链内或链间能量转移的方式传递到苯噻唑单元。

Comparative study of the properties of both ground and excited states of metal-free indoline dyes for dyesensitized solar cells revealed: as the number of rhodanine rings increases, the energy difference between HOMO and LUMO decreases and there is a red shift in the absorption spectrum with the binding energy increased, and the transition dipole moment decreased; Based on an analysis of cha...

对比研究吲哚染料的基态和激发态性质，揭示了随着绕丹宁环数目的增加，HOMO和LUMO的能量差减少，吸收光谱红移，但是束缚能增加，跃迁偶极矩减少；依据电荷差分密度，电荷和能量从苯乙烯转移到吲哚环和绕丹宁；电子空穴相干性主要表现在吲哚环和绕丹宁环，对于吲哚染料系统，存在一个绕丹宁环的体系的激子数目为30个原子，带有两个绕丹宁环的体系激子数目有40个原子。

When the external field is applied,state entanglement and mixedness will reduce,but if the Ω/g is selected a reasonable value,we can effectively suppress the mixedness and prepare a pure excitonic entangled state.

当激子受外经典场驱动时，其纠缠度和混合度都将减少。但Ω/g调节合适，我们能有效的抑制态的混合度而制备出一个纯净的激子纠缠态。

The anodes are injected into Alq3 hole through TDP when using low DC voltage, and captured by Alq3 together with the electrons injected into the Alq3 through cathodes to form up excitonic pairs, and the excitonic compounding produces radioluminescence.

在加较低直流偏压时，阳极通过 TDP 注入到 Alq3 的空穴，与阴极注入到 Alq3 的电子被Alq3 捕获形成激子对、激子复合产生辐射发光。

The limited factors for increasing efficiency are:the bound-energy of exciton is high,the disffusion length of exciton is short,the mobility of carrier is low and charge collection efficiency near the interface of polymer/electrode is uneffective.

而制约其转换效率提高的主要因素是：在聚合物中形成的激子束缚能大、激子扩散长度短、载流子迁移率低和电荷在电极处的无效收集。

Chapter 3, we calculate the polaribilities of exciton and biexciton by the means of Green functional method.

论文在第二章从TLM模型出发，用反散射法得到了激子和双激子的解析解。

This process is quite different from the role of exciton blocking, and can be used to explain the results we obtained.

我们从实验上证实了激子在界面被有效拆分的物理过程的存在并对界面拆分激子对测量结果的影响进行了估计，并据此提出了在设计高效有机太阳能电池中应该注意的原则。

Finally the effect of quantum lattice fluctuation in exciton state is studied by variational method.

论文的最后研究了量子晶格涨落对激子态的影响，通过对哈密顿量的幺正变换，得到激子态的激发能，对计算结果进行分析最后给出结论。

It is the first time to study the fluctuation of quantum well width and the influence of exciton localization, arising from the fluctuation, on exciton recombination.

这是首次从理论上探讨了量子阱阱宽涨落及其所引起的激子定域化对激子复合行为的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。