查询词典 n-type semiconductor

Al and N with different concentrations are heavily doped in ZnO semiconductor,and the density of states of Al and N doped ZnO is calculated by DFT mothod under the condition of low temperature.

即在低温高掺杂氮和铝原子的条件下，ZnO半导体的电导率不仅与掺杂氮和铝原子浓度有关，而且和进入价带的相对空穴数有关。

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。

The deformed metal-SWNTs and metal-TCNTs can be transformed to semiconductor or insulator due to deformations resulting to variation of the atomic structure and the nearest-atom transfer integral having relation with the directions.Based on the Boltzmann transport equation and n - electronic energy dispersion relations for individual SWNTs, the theoretical model caculating the current and conductance of the SWNTs is deduced. The low-temperature conductances of undoping or doping SWNTs are studied numerically, the calculated results show that, for the doping SWNTs, the conductance is quantized, i.e.

我们从Boltzmann方程出发，并结合SWNTs的能量色散关系，导出了计算手性SWNTs电导或电流的理论模型，并分别对非掺杂和掺杂SWNTs的低温电导或电流进行数值计算，结果表明：对于非掺杂的SWNTs，其电导是量子化的，即电导随偏压或电子输运能量变化呈跃变的台阶式结构，这些结构随管径增大或温度升高变得不明显；对于掺杂SWNTs，当偏压为某些特定值V_i时，传导电流有跃变，且传导电流的大小、跃变周期及跃变幅度等不是完全由掺杂后的电子浓度决定的，而与管半径R及掺杂后Fermi能级附近的电子态密度有直接关系，随着温度的升高和管径的增大，跃变结构趋于平滑。

A radiation hardened N channel Si power device——VDMNOSFET (Vertical Double Diffused Metal Nitride Oxide Semiconductor Field Effect Transistor) is fabricated by using a double layer (Si 3N 4 SiO 2) gate dielectric and a self aligned heavily doped shallow P + region.

采用 Si3N4- Si O2 双层栅介质及自对准重掺杂浅结 P+区研制出了一种抗辐射加固功率器件—— VDMNOS-FET (垂直双扩散金属-氮化物-氧化物-半导体场效应晶体管)。

Subcarrier multiplexed addressing and wavel ength conversion based on cascaded semiconductor optical amplifier perform the f unctions of subcarrier signal with data multiplexing and transparent transmissio n of payload.

副载波复用和基于级联半导体光放大器的波长变换，实现了射频副载波路由信息与基带IP数据包的同步复用和IP数据包的透明传输。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。