激子

The results indicated that nanospheres of PbS on fiber with regular shape and PbS grain size is 30 nm.

硫化铅是一种重要的半导体材料，其能带间隙为0.41eV，具有较大的激子半径18nm

Later, electroluminescences based on organic phosphorescent complexes have drawn particular attention in recent years.

在过去20年对小分子电致发光器件的研究中，由于没有充分利用三线态激子能量，器件的内量子效率存在25%的理论极限。

E. , powder, coating, and glass. In the glassy sample, two excitonic PL peaks were observed in the first time. HREM results suggested that it may be associated with an unknown polytype of AgI.

在玻璃体样品中首次观察到两个新的激子发光峰，并配合HREM结果认为它们可能对应一种未知的AgI多型结构。

The red shift of exciton energies andthe variation of absorption coefficients in different electrical field are calculated.

在此基础上，计算了不同电场条件下激子能量的红移，以及吸收系数的变化。

To understand the mechanism of the luminescent enhancement for the nanocomposites,the measurements of steady fluorescence emission,fluorescence lifetime and spin-lattice relaxation time ( t 1) of the individual carbon atoms in MEH-PPV for the nanocomposite films were carried out.

结果激发态激子自淬灭的几率降低，稳态荧光量子产率提高和动态荧光寿命的延长；通过共轭碳原子的自旋-晶格弛豫时间的测定，观察了MMT对聚合物分子运动的影响，并由此探讨了MEH-PPV凝聚态与光物理性质的关系。

The electrons on a surface state induced by two-photon absorption (2PA) can be trapped by pyridine or 2, 2'-bipyridine, and have more long lifetime, which is helpful for increasing the third-order nonlinearities.

双光子吸收诱导产生的表面受陷电子能被Py或2，2'-bPy捕获，并且具有较长的寿命，这有利于对激子吸收的漂白，从而提高了三阶非线性。

Since it has many special mechanical,optical, electrical, magnetic, calorifics and chemical properties which differ from thecorresponding bulk materials due to its size effect, surface effect and quantum effect,as a wide band gap semiconductor material with large exiton binding energy of 60meV at room temperature, it is attractive for many new applications in industry andhigh-tech fields.

由于ZnO是一种直接带隙的半导体材料，室温下能隙宽度为3.37 eV，激子束缚能高达60 meV，具有优良的物理和化学性质，其显著的表面效应、量子尺寸效应和宏观量子隧道效应，是目前光电子研究领域的热点。

Since exciton transfer and trapping between the chromophoric segments are much more fast process than radiative and non-radiative decay, energy transfer from wide gap segment to narrow-gap site should be highly efficient.

另外，激子在发色团片段的传输和俘获过程比辐射和非辐射性延迟过程快，所以从宽带隙到窄带隙之间的能量转移是很高效的。

Resonance Raman spectra of aggregated meso-tetra(4-pyridinium)porphyrin diacid (H8TPyP6+)were studied with excitation near the exciton absorption bands of 470 nm.

研究了近激子吸收带激发下四-(4-吡啶基)卟啉二酸(H8TPyP6+)聚集体的共振拉曼光谱。

The quantum size effect of a very small thickness circular disclike GaAs quantum dot on exciton's ground state binding energy and the electron-hole distance are studied by using calculus of variations.

利用变分法研究了有很小厚度圆盘形GaAs量子点模型中激子的基态结合能，及电子-空穴间距随量子点尺寸变化的规律。

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。