查询词典 semiconductor

Our work can be divided into two parts: one is about the electronic structure and magnetism of FeS_4Sb_2; the other one is about the calculations of the electronic structure and magnetism of the transition metal Mn- doped diluted semiconductor GaAs supercell.

本论文的目的就是用基于密度泛函理论的第一性原理计算来研究几种磁性材料的电子结构。

The plasma frequency of doped semiconductor can be adjusted by changing the dope concentration.

其次，讨论了颜料粒子的单散射性质，计算了球形均匀粒子、包覆球形粒子、旋转椭球粒子以及其它非球形粒子的散射和吸收性质。

It consists of a highly doped p-n semiconductor junction, which short circuits with negative bias and has negative resistance over part of its range when forward biased.

它是由重掺杂p_n半导体结组成，p_n 结会由于负偏压而短路，并且当加正向偏压时，在其适用范围它具有负电阻。

Keywords: rare-earth doped material; wide-gap semiconductor; III-nitride; laser radiation; plasma

中文关键词：稀土掺杂材料；宽能隙半导体；III族氮化物；激光辐射；等离子体

We show that, compared to most photonic crystals made from two different dielectrics, these doped semiconductor/dielectrics 1D photonic crystals can not only form the photonic gap, but also can enhance the terahertz transmission through n-GaAs.

研究结果发现，与一般由两种介电材料组成的一维光子晶体不同，由于掺杂半导体中自由载流子对太赫兹波存在较强的吸收，所以这种材料组成的一维光子晶体除可形成光子带隙外，还可以增强n-GaAs对太赫兹波的透射。

This paper reports results of Tin doped fibre pumped by a semiconductor laser diode as an optical source for methane gas detection. The spectral characteristics of the Tm doped fibre pumped by the 788 nm laser diode is studied experimently and the fibre source is used in a correlation spectroscopy measurement system.

报道了以半导体激光器泵浦掺Tm3+光纤为光源的甲烷气体相关光谱检测系统，研究了788 nm波长泵浦下掺Tm光纤光源的一些光谱特性，并在实验上用这种光源及系统对甲烷气体作了测量。

The optically active defect centers of such types as E', two kinds of oxygen-deficiency and some kinds of oxygen-richness in silica play an important role in optical communication fiber and UV absorption. The researches on some oxygen-deficient defects and the metal ions doped or implanted semiconductor nanoparticles with fine luminescence properties have made it possible for silica to be used in the lighting field.

氧化硅材料本征E'、2种缺氧型以及各种富氧型光活性缺陷中心在光导纤维及紫外吸收等应用中扮演了很重要的作用，某些具有良好发光性能的缺氧中心及掺杂离子或半导体纳米粒子发光中心的深入研究使氧化硅材料在照明领域具有良好的应用前景。

We try to synthesize the Co doped TiO2 dilute magnetic semiconductor structure via thermal treatments under vacuum environment, and study its magnetic property. The results reveal that during thermal treatments in a vacuum environment, the Co grains may form the oxide phase structure, and lose their magnetic properties.

研究结果发现在真空高温退火过程中，虽然钴粒子会均匀扩散至非晶的二氧化钛薄膜，其铁磁性的行为却因此消失，由实验结果推断在高温回火过程中，钴可能形成反铁磁的氧化物的结构。

In this work, the terahertz transimission spectrum through a 1-demensional photonic crystal made from doped semiconductor n-GaAs/polycarbonate is studied by the transfer-matrix method.

本文利用传输矩阵方法研究了掺杂半导体n-GaAs/聚碳酸脂一维光子晶体的太赫兹波透射谱。

The electrocatalytic electrodes, including titanium anodes coated with transition metal, metal oxides and doped semiconductor, diamond electrodes and three dimensional electrodes are summarized and assessed.

在分析中，综述了电催化高级氧化电极研究现状，阐述与评价了过渡金属涂层电极、金属氧化物涂层电极、含掺杂半导体涂层电极、金刚石膜电极、三维电极等几个主要方面的研究成果，并对今后工作的重点提出了一些意见。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。