Results indicate that the optical band gap of the CN x films is decreased with the increasing nitrogen concentration, accompanied with the reflectance increase of the films. 结果表明:随着薄膜中氮含量的增加,碳氮薄膜的光学禁带宽度减小,红外反射率增加。
The photonic band structure, photonic density of states, the transmission and reflection coefficients along Г X direction were obtained. The results indicate a clear correspondence between the photonic band structure and the transmission spectra along Г X direction. 通过光子能带结构、光子态密度的分布以及沿ГX方向透射谱的计算,发现透射谱光子带隙的位置与能带结构符合得很好。
In the valence band obtained by XPS, the peak positions of the O ( 2p) and the VBM's could show a firm correlation with the catalytic activity which depended on the x value. 价带谱的O(2p)峰位和价带顶与催化活性有一定的对应关系。
Phosphor Induced Optical Band Gap Modulation of BP_ x N_ ( 1-x) Films 石英衬底上的BPxN(1-x)薄膜沉积及P对其光学带隙调制的研究
The results show that the ( Ge)_1 ( Si)_1 superlattice is an indirect semiconductor, and the lowest conduction band state is at point X in the Brillouin zone; 结果表明(Ge)1(Si)1是间接带,导带最低点在布里渊区的X点。
The anisotropy and duplex result in different band gap structures, transmission probabilities and state densities for x polarization and y polarization. 各向异性和复式结构导致了x偏振和y偏振有不同的带隙结构、透射率和态密度等。
It is found that the dielectric model exchange-correlation potential does not change the valence band states significantly and increases by a small amount the energy difference (-0.2eV) between the X conduction band states and the top of the valence band. 发现介电模型交换关联势并不导致价带态发生明显的变化,它虽使布里渊区X点附近导带态和价带顶之间的能差稍有增大(~0.2eV)。
Effect of Strain on Band Gap Bowing and Band Structure of Al_xGa_ ( 1-x) N 应变对AlxGa(1-x)N能带间隙弯曲系数和能带结构的影响
In EUV and soft X-ray band, the most often used detector is ion chamber with rare gas, from whose collective electrode we can directly calculate intensity of photon flux. 在极紫外和软X射线波段常用的探测器是稀有气体电离室,可以通过电离室收集极的收集电流直接计算出光子流强度。
It is proposed that the properties evolution of F-DLC films such as optical band gap and relative dielectric constant depends on not only the content of fluorine atoms in the films but also C F x bonding configurations and C F x bonds distribution. 薄膜的性质如光学带隙和介电常数等不仅与氟含量有关,还与碳氟原子间的耦合形式和碳氟键的分布密切相关。
The experimental study of low noise high gain wide band GaAs FET amplifier at X band X波段低噪声、高增益、宽频带放大器的研制
The conduction band states near the Γ valley mainly originate from the X valley of bulk Si conduction band which is formed from Brillouin zone folding in superlattices. 两类超晶格的导带Γ能谷的状态主要由Si层的原来体导带X能谷经布里渊区折叠而组成。
It can be used to fabricate X-ray and γ-ray detectors because of its high resistivity, low dark current, good thermal stability, wide and adjustable band gap, high energy resolution of the detecting ray, etc. 它具有电阻率高、暗电流低、热稳定性好、带隙宽且可调、探测射线能量分辨率较高等诸多优异的性能,适用于制作X射线和γ射线探测器。
Synthesis of BaNd_xFe_ ( 12-x) O_ ( 19) Ferrite by Hydrothermal Process 水热法合成BaNdxFe(12-x)O(19)铁氧体的研究
Under the precise control of local and global tolerances, an obvious X-shaped shear band pattern is obtained. 在局部误差和整体误差都得到精确控制的情况下,用数值方法得到了土体内部明显可见的X型剪切带。
Energy Band Structure of Metastable Semiconductor ( GaAs)_ ( 1-x)( Ge_2)_x 亚稳半导体(GaAs)(1-x)(Ge2)x的能带结构
A Kind of Short Wave Band SID Records and Its Application in the Observation and Study of Solar X-ray Flares 一种短波SID监测记录及其在太阳X射线耀斑观测中的应用
Then the fixation band was tightened to distance between the superior and inferior extremity which was checked by x-ray film and the backboard was relatively fixed to avoid re-displacement. 复位后收紧固定带,使胸片的上、下端与后板的距离相对固定,防止再移位。
The technology of composite targets is applied in many mid-and high-energy band medical accelerators to harden the energy spectrum of X rays for radiotherapy treatment. 为了使X射线能谱硬化以利于放射治疗,国外中、高能医用加速器较多采用复合靶技术。
The dependences of the electronic band structures on the layer number m and the alloy composition x are discussed. 讨论了电子能带结构随超晶格层厚m及合金组分x的变化情况。
Characterization of W-type barium hexagonal ferrite-based wide band microwave absorber at X band X波段W-型六角铁氧体宽频吸波胶的特性研究
Thirdly, band decomposition of orthogonal coordinate space and X-type decomposition of polar coordinate space were defined and proved that there exists local double Lipschitz mapping between them. 然后,定义了直角坐标空间带状分解与极坐标空间的X型分解,证明了直角坐标空间的带状分解与极坐标空间的X型分解之间存在局部双Lipschitz映射。
The conduction band offset and the interface charge density are derived from the apparent carrier concentration distribution obtained by the C-V profiling techniqe. 采用C-V法测量Si/GaP(Ⅲ)异质结的表观载流子浓度分布n(x),从中导出了异质界面的导带失配值和界面电荷密度。
The broad band energy distribution of the AGNs in the authors 'sample is shown. 通过分析该样本中的活动星系核的宽波段能量分布,确认了来自射电、光学和X射线波段的辐射光度之间的显著相关性。
The superposition of an appropriate sub-plateau can give single attosecond soft X-ray pulse, and the effect of HHG from ion has been eliminated through the band selection. 通过选取合适的子平台进行频率叠加,在消除了离子的高次谐波的影响后,可以获得单个的阿秒软X射线脉冲。
XPS Valence Band Spectrum of VO_x Films for Uncooled Infrared Detector 非致冷红外探测用VOx薄膜XPS价带谱研究
The GaP_ ( 1-x) N_x alloys display obvious band-gap reduction characteristic, with the PL spectra developing from nitrogen bound excitons and their phonon replicas under low x composition to impurity band emission under high x composition. GaP1-xNx混晶的PL谱从低组分的NN对束缚激子及其声子伴线到高组分杂质带发光的特征,表现出明显的带隙降低的趋势。
The calculated X-ray emission spectra are in the same energy band range as the experimental results. We discuss the non-equilibrium characteristics of X-ray emission, and show that the contributions of the multiply excited ions to X-ray emission are important. 得到与实验谱相同的能带范围,并得出在激光等离子体中多电子同时处于激发态的离子组态对X射线发射的贡献不能忽略的结论。