surface n. 1.表面;地面;水面;广场,空地。 2.外观,外表,皮毛。 3.【几】面;切口;【航空】翼面。 adj. 表面的;地面的,水面的;外观的,外表上的;(对高架及地下铁路说的)平地上的;(对矿井内说的)矿井外的。 an adjusting surface 【航空】调节板。 a supporting surface 【航空】支持面积。 a plane surface 平面。 surfaces in contact =rubbing surfaces 摩擦面。 look at the surface only 只看外表。 One never gets below the surface with him. 人们无法看透他的内心。 a surface raider 海上突击舰。 look below [beneath] the surface of things 看到事物的内部。 of the surface 外观上的,表面的。 on the surface 表面上,外表上。 vt. 为…装面[配面],对…作表面处理;使成平面;掘开…的地面;铺(路面);使(潜艇)浮出水面。 vi. 地面采掘,井外劳动;浮出水面。
A model of i - v characteristics under illumination in gan - based metal - semiconductor - metal photodetectors has been built , using steady - state continuity equations and including the effect of surface states 通过求解一维电流连续性方程和传输方程,同时考虑表面态陷阱的作用,建立了gan基msm结构紫外探测器在稳态光照下i - v关系的解析模型。
Further investigations show that new surface states are derived by the doping , which may lead to the changes of the surface properties of sno _ 2 ( 110 ) . it seems that the type of doping atom has great effects on the positions of doping states 值得注意的是, ti掺杂对co吸附影响较小,而掺杂ru原子可显著增强表面对co的吸附,尤其是五配位sn原子被ru取代后,具有最大的吸附能。
The result of the test for dynamic breakdown characteristics reveal that breakdown voltage increases as the lengths of the pulses applied to the gate and drain electrodes increase . this could be mainly due to the influence of surface states Gaasmesfet动态击穿特性测试结果表明, gaasmesfet的击穿电压随栅极与漏极上所加脉冲电压宽度的增大而增大,这主要是因为表面态的原因。
During the insulators are carried out working voltage after it was iced , the surface states of iced insulators would variety according to the environment conditions . therefore , the amplitude of leakage current would vary from several a to 300 ~ 600ma 绝缘子覆冰后在运行电压作用下,由于环境条件的变化引起的表面覆冰状态的变化,从而造成泄漏电流的变化范围大,通常在a到300 ~ 600ma之间。
So we drew a conclusion that the external environments , such as water in atmosphere , oxygen etc , had great effect on the semiconductor nanoparticles surface electron structure and surface state , while ethanol has few effect on them 所以我们得出一个结论:半导体纳米粒子的表面电子结构和表面态的性质受外界环境(空气中的水分子、氧物种等气体分子)的影响比较大,而乙醇分子对其表面光伏性质影响很弱。
The doping of europium did not induce any new luminescent centers , but caused the luminescent efficiency of defects to increase greatly . 4 . by changing the rinse times during the synthesis of zns nanocrystallite , the surface state was studied 4通过改变zns纳米晶制备过程中清洗的次数,比较了清洗前后发光强度的变化,分析了自激活发光中心在纳米晶中的分布状况,即自激活发光中心倾向于占据表面格位。
We consider that surface state act as quenching centers . with the irradiation , the surface state decreases and therefore luminescence of mn2 + increases . reduction of quenching centers is the result of chemical change by obtaining energy from zns excited by uv light 荧光增强的原因是由于zns基质向mn2 +离子和表面态的能量传递是两个相互竞争的过程,紫外光辐照下表面猝灭中心数目不断减少从而mn2 +离子的发光增强。
Some results are interesting , for example , in our calculation , there are no reconstruction in the cleaned pbte > pbse > pbs ( 001 ) surface . but there are different rumple occurs . unlike the iii - v and ii - vi semiconductors , there are no surface states in the fundamental gaps 在表面电子结构特征方面,与111一v族和n一vl族化合物不同,基本带隙中不引入表面态,而在导带顶和价带底附近以及更深能级中出现表面态或表面共振态等。
In comparison with the apups , the results have shown that the surface states of the hollow site are in good agreement with the experiment . so we concluded that the hollow site model is favourable for the gaas ( 113 ) ( l xi ) surface and the bridge site model should be e xcluded . 3 3 .其他工作除此之外,论文还对铅盐pbte 、 pbse 、 pbs ( 001 )表面电子结构, ybco超导体表面氧特性、金属ti和ni在金刚石表面的吸附和扩散等特性进行了研究。
In this thesis , we studied systematically the influence of the annealing on the crystallite structure and fluorescence of zns nanoparticles and the surface state of zns nanoparticles . the main results and innovation are as follows : 1 . zns nanocrystallite was prepared by co - precipitation 本文以退火和清洗为实验手段,较深入的研究了zns纳米晶颗粒尺寸、结构相变、颗粒表面态和发光性质,论文主要内容如下: 1用均相沉淀法合成了晶粒度为11nm的zns纳米晶。