掺杂

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。

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。

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。

Electrical oscillations in a metallic "sending coil" radiate inductive photons toward one or more "energy-magnifying coils" comprised of a photoconductor or doped semiconductor coating a metallic conductor, or comprised of a superconductor.

电气振荡的一个金属"发送线圈"辐射感应光子对一个或一个以上的"能源-放大镜线圈"组成的一个光导体或掺杂半导体涂层的金属导体，或组成的超导。

It showed that doped ion stabilized the structure and help to increase the performance of the material.

掺杂离子稳定了材料的结构，有利于材料的性能的稳定和提高。

The effects of Fe doped on the structure of ZnO films were investigated.

二。研究了Fe掺杂对ZnO薄膜结构的影响。

Finally, the problems in the study of nitrogen doped TiO2 photocatalysts and the future developing trends are presented.

文章最后指出了氮掺杂TiO2催化剂研究中有待解决的问题及今后的发展方向。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。