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main absorption edge 主吸收限
The ultraviolet absorption edge of Sr 2TiSi 2O 8 is around 270nm. 反射光谱显示其紫外吸收边为 2 70nm左右。
A blue-shift of the optical absorption edge was observed from the UV-Vis transmission spectra. UV-Vis透射光谱中观察到光吸收边相对于体相半导体有明显蓝移.
CA4 3 was absorbed with high molecular weight, the main absorption site was in the upper part of small intestine. CA4 3可通过口服以大分子形式吸收 ,主要吸收部位在小肠上段
The absorption edge of the AgI-SiO_2 composites is different from both pure constituents. AgI -SiO2 复合体系的光谱吸收边与纯AgI及纯SiO2 不同。
The core_shell absorption edge of sapphire is studied by using the electron energy loss microspectroscopy. 利用电子能量损失光谱学研究了蓝宝石核心壳层吸收边缘。
The experimental result of anomalous violet-shift of absorption edge of LiNbO_2 crystal of the solidliquid congruent point composition is presented. 本文报道了固液同成分点组分的LiNbO_3晶体的本征吸收边的异常紫移的实验结果。
In this paper, the Experimental result of anomalous violet-shift of absorption edge of congruently melt grown LiNbO3 at room temperature is presented . 本文报道了室温下;固液同成分点熔体中生长的LiNbO_3光学吸收边的异常紫移的实验结果.
Optical absorption and reflection were measured. The optical absorption edge of 3. 39 eV, and the reflectivity peak at 3. 3 eV confirmed the results of photoreflectance. 光吸收增和光反射谱的测量，得到3.;39eV的光学吸收边和3
The LNi composite coating generated an obvious optical absorption at 300-350nm, and the absorption edge was shifted with an increase in the crystalline size. LNi复合涂层在300-350nm存在显著的光吸收;随着晶粒尺寸增大;光吸收边发生显著的红移.
The main absorption band appears at 562 nm. The height of this band is quite different for these three minerals: the highest band is observed for dickite and the lowest for pyrophyllite. 主吸收峰在562nm左右,峰高以迪开石为最大,高岭石次之,叶蜡石最低。
It also showed that the optical absorption edge of the annealed film appeared shifted towards the longer wavelength side and the band gap decreased by 0. 光学性质显示退火处理的薄膜吸收边缘明显的向长波的方向移动,发生红移现象,而且禁带宽度减少了0。
The blue-shift of the absorption edge of the compound films were observed comparing to that of bulk GaAs crystal. The blue-shift value of 1.16eV was obtained in the films with diameter of (3.2nm) GaAs nano-particles. 与大块GaAs材料相比;复合薄膜的光学吸收边发生了明显的蓝移;GaAs颗粒尺寸3 2nm的复合薄膜吸收边蓝移达1 16eV.
The results showed that Franz Keldysh effect of ZnS thin films resulted from electroabsorption of band tail. The shift of absorption edge to long wavelength was due to increase of absorption of local states near band edge. 在电场作用下，ZnS薄膜的Franz－Keldysh效应主要发生在带尾附近，带尾的局域态吸收受电场的影响引起的增加导致光学吸收边的红移。
The DSR spectrums show the compounds with unpaired electron (with V+4 atom) possess broad absorbed peaks at VIS wave range, and the compounds with only V+5 atom show a obvious absorption edge. 研究了12种化合物的紫外－可见固体漫反射光谱、稳态荧光光谱性质。紫外－可见固体漫反射光谱显示具有未成对电子(即含有+4价钒原子)的化合物在可见波段有宽的吸收峰，而仅具有五价钒的化合物的紫外-可见固体漫反射光谱具有明显的吸收边。
The transmittance of TiO2 films decreases, the average crystalline size of TiO2 films increase and the absorption edge wavelength of TiO2 films becomes larger with increasing cycle times and film thickness. 随着镀膜次数或薄膜厚度的增加，薄膜中TiO2纳米微晶的平均晶粒大小逐渐增大，TiO2薄膜的透光率略有减小，其吸收阈值发生了明显的红移.
With the increase of Mg doping amount, the absorption edge in ultraviolet-visible absorption spectra of Mg:Mn:LiNbO_3 crystal shifts to the violet and then inversely to the red when Mg doping concentration is up to the threshold. 晶体的紫外-可见吸收光谱表明,当掺镁量没有达到阈值浓度时,Mg:Mn:LiNbO_3晶体的吸收边随掺镁量的增大发生紫移,当掺镁量达到阈值浓度后,晶体的基础吸收边又发生相对红移。
It is affirmed that the absorption edge below 4. 0 eV is attributable to indirect transition,the significant discussion of three straight-line parts of spectral line are obtained by studing the curve of LiNbO3. The energy gap E, is 3. 38eV. 通过对晶体a~(1/2)-hv曲线的研究;肯定了40.;eV以下吸收边的间接跃迁性质;并讨论了三段直线的意义。确定了禁带宽度E_f的值为3
The absorption edge increases as the amount of fluorine is raised. The optical energy gap E g is mainly determined by CF bond in the films, which results in the change of the density of states in band tail of the valence band. 薄膜中氟的引入对吸收边和光学带隙产生较大的影响 ,吸收边随氟含量的提高而增大 ,光学带隙则主要取决于CF键的含量 ,是由于强电负性F的引入改变了价带带尾附近带隙中态密度的结果所至
The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。

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