未掺杂的

The influence of this complex on the electrical properties of n-type LEC undoped and compensation in Fe-doped InP is discussed.

讨论了其对未掺杂InP的电子特性和掺Fe的InP的补偿的影响，及其对InP热稳定性的影响。

We have deposited the undoped and boron doped silicon thin films in the p champer using radio frequency plasma enhanced chemical vapor deposition method.

采用传统射频等离子体增强化学气相沉积技术，沉积了未掺杂和硼烷掺杂浓度为0.4％的两个系列的硅薄膜。

We found out one kind of new orange-red long afterglow material La2O2S: Eu3+, Mg, Zr.2 In the phosphor Gd2O2S, Mg, Ti which was prepared by high-temperature solid-state method, the orange afterglow phenomenon can be seen after illuminated with UV light.3 Using the high-temperature solid-state method, Gadolinium oxysulfide phosphors doped with rare earth ions were synthesized. We can observe the red or orange phosphorescence in Gd2O2S doped with Eu3+, Sm3+, Tm3+, Yb3+, Dy3+, Er3+, Nd3+or Ho3+. This is a new result of the long afterglow phosphors research.4 Using the microwave radiation method, the new Sm3+ doped gadolinium oxysulfide phosphor, which has the orange-red long afterglow emission after illuminated with UV light or visible light, was synthesized for the first time.5 In fluorescent materials YOX doped with europium ions, the long afterglow phenomenon wasnt observed but the blue luminescence of Eu2+ and red luminescence of Eu3+ are simultaneously examined. This is a new result of the valence stability and change of Eu2+ in yttrium oxyhalide .We systematically studied the effects of the host, addition agents and reaction atmosphere on the valence change and fluorescence property of europium ions.

经过系统的研究总结得到以下的结论与成果： 1采用高温固相反应法合成了一系列稀土离子掺杂的硫氧化镧发光粉，发现了该体系中Eu~(3+)的长余辉发光，从而得到一种迄今未见文献报道的红色长余辉发光材料：La_2O_2S：Eu~(3+)，Mg，Zr； 2在Gd_2O_2S，Mg，Ti磷光粉中观察到橙色的长余辉发光现象； 3采用高温固相反应法合成了一系列稀土离子掺杂的硫氧化钆磷光粉，在掺杂Eu~(3+)、Sm~(3+)、Tm~(3+)、Yb~(3+)、Dy~(3+)、Er~(3+)、Nd~(3+)、Ho~(3+)的Gd_2O_2S中观察到红色和橙色长余辉发光； 4首次采用微波法合成了Gd_2O_2S：Sm~(3+)，Mg，Ti磷光粉，该磷光粉经紫外或可见光激发后呈现明显的橙红色长余辉发光； 5在YOX中同时观察到Eu~(2+)和Eu~(3+)的发射，系统研究了基质、添加剂及反应气氛对Eu价态和发光的影响。

The results showed that the samples without doping of Mg had a single-phase perovskite LaCrO_3 structure

实验结果表明，未掺杂Mg的样品为单一相钙钛矿LaCrO3结构。

The results indicate that Pt-based alloys appear circular shape and distributehomogeneously on the carbon, the particle size is homogeneous and about 2～4nm. The crystalline form is platinic face-centered cubic and most of crystalplane is Pt(111), the doped metal elements dont form simple substance and existas Pt-M alloy formation.

研究表明，制备的Pt基合金微粒基本呈圆形，金属颗粒在活性炭表面上分布均匀，粒径也较为均匀，粒径范围约2～4 nm，晶型结构仍以Pt面心立方晶系存在，晶面以Pt(111)居多，掺杂的元素原子未单独形成单质颗粒，而是以Pt-M合金的形式存在。

The current-voltage characteristics of undoped and Sb doped tin thin film gas sensors are to be studied both experimentally and theoretically.

本课题对未掺杂与掺杂锑的SnO2薄膜的电流电压特性进行了理论和实验的研究。

Furthermore, the gate is directly sitting on the undoped layer, and it shows larger gate turn-on voltage and broad gate swing.

此外，闸极直接镀於未掺杂层，因此有大的闸极导通电压宽广的闸极电压操作范围。

Undoped and indium-doped zinc oxide films are deposited on Si substrates by radio frequency reactive sputtering technology.

采用射频反应溅射技术在硅(100)衬底上制备了未掺杂和掺In的ZnO薄膜。

The microstructure of plasma spraying coating doping nanometer Al2O3/ZrO2 was complicated. The particular structure include cylindrical micrometer crystal enwraped in putamina consist of nanometer ones, unmelted ZnO2 partical studded in the crystal.

纳米掺杂等离子喷涂AI2O3/ZrO2涂层的微观组织形貌复杂，存在着纳米柱状晶薄壳内包裹着微米级柱状晶、未熔化的ZrO2陶瓷粒子嵌镶在晶体内部的独特晶内结构。

Some preliminary studies on A_2BO_4 type oxides materials in therms of electrochemical properties have been reported. But there are seldom deep researches on electrochemical properties of doping in the A site of the A_2BO_4 type oxide.

有关未掺杂或B位掺杂的A_2BO_4型复合氧化物电化学性能已经有了一些报道，但对于A位掺杂的A_2BO_4型复合氧化物电化学性能研究鲜有报导。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。