查询词典 polycrystalline

The experimental evidence has shown that the polygonal Co particles are the final form. We found that Co formed nanocrystallites of 2-5 nm in diameter in the surface coating layer of the Mg_2SiO_4 crystalline stems and then aggregate into large clusters. These clusters further grow and recrystallize into polygonal single crystals. Instead of the single crystals, it is the polycrystalline clusters that played the most important role in Mg_2SiO_4 growth.c.

b。实验中观察到的现象表明多面体的Co颗粒并不是一开始就形成的，而是首先在Mg_2SiO_4的枝干表面以2-5nm的纳米晶体聚集成较大的团簇，这些团簇再继续生长并在最后重结晶为多面体的形状。

The stoichiometrical preferred orientation AlN (100) polycrystalline films were deposited on Si (100) wafers with D E =1.0 J·cm -2 , P N 2 =13.333 kP...

分析表明薄膜是具有高取向性的AlN（100）多晶膜，薄膜的能带间隙约为6.2eV，其电阻率和击穿电场分别为2×1013Ω·cm和3×106V·cm－1。

The stoichiometrical preferred-orientation AlN (100) polycrystalline films were deposited on Si (100) wafers with DE=1.0 J*cm-2, PN2=13.333 kPa, Tsub=200℃, V=650 V, f=5 Hz, and dS-T=4 cm.

实验结果表明，当DE=1.0 J*cm-2，PN2=13.333 kPa，Tsub=200℃，V=650 V，f=5 Hz，dS-T=4 cm时，高质量的AlN薄膜被成功地沉积于Si(100)基片上。

The results showed:there were some differences in phase structure,composition and morphology for the films synthesized at different sulphurization temperatures and time;the films sulphurized at a temperature of 240 ℃ for 45 min were polycrystalline SnS films with orthorhombic structure.

当硫化温度为240 ℃、硫化时间为45 min时，所制得的薄膜为正交结构的SnS多晶薄膜，其均匀性、致密性以及对基片的附着力都较好，具有(111)方向优先生长，薄膜粒径在200～800 nm，且晶格常数与标样的数值吻合很好。

Strained Si PMOSFET with Polycrystalline SiGe gate can enhance its performance for improvement of carrier mobility and turnable threshold voltage without impurity scattering to carrier.

应变Si pMOSFET以多晶SiGe做栅，既能提高空穴的迁移率，又能调节器件阈值电压而不会对载流子引入杂质散射，因而提高了器件性能。

Preparation and formation mechanism of polycrystalline vanadyl phthalocyanine Nanoparti-cles.

两种晶型酞菁氧钒纳米颗粒的制备及形成机理。

Boron is one of acceptor elements in polycrystalline silicon solar cells, which can influence the photo voltaic efficiency and stability of a solar cell.

硼是多晶硅太阳电池的受主元素，影响太阳电池的光电转换效率和稳定性。

The saturation magnetization Ms, magnetic anisotropy field HA and magnetocrystalline anisotropy constant K1 of the above-mentioned particle assemblies wese estimated by using the law of approach to saturation of polycrystalline ferrite, while the Curie temperature Tc was determined by the thermodynamic relation.

用适用于多晶体的趋近饱和定律估计了上述颗粒的饱和磁化强度Ms、磁各向异性场HA和磁晶各向异性常数K1；并用热力学关系定出了居里温度Tc。

The area is small to the highest ( conversion efficiency 13 - 15%, some have achieved more than 20%) of monocrystalline silicon solar energy cell conversion efficiency, and output power is big, and stability is good, grows ( generally can reach more than 20 years ) service life, but the raw and processed material cost height, the weak light specific property is wronger, and production technology is complicated, hence the selling price is also higher; The polycrystalline silicon solar energy cell is basic identical with the function characteristic of monocrystalline silicon solar energy cell; The conversion efficiency of non- brilliant silicon solar cell than hangs down ( simples about 6 - 8%), the area is than greatly, but because of his raw and processed material cost than hanging down, can be easy to big area industrialize production, what will have hope to be used the generally big area to generate electricity from now on most will be this kind of application that battery is along with manufacture technique and new material, in a single day the practical package photoelectricity conversion efficiency of its big area achieves more than the 10-15%, and the price of every tile electric power-generating equipment is fallen 1 - 2 U.S.dollar of time, and just is enough to that the solar energy cell efficiency that big area the getting extensive use will constantly replace in now convention certainly special use and the laboratory of sources of energy s will high get many.

单晶硅太阳能电池转换效率最高（转换效率13～15%，有的已达到20%以上），面积小，输出功率大，稳定性好，使用寿命长(一般可达20年以上)，但原材料成本较高，弱光特性较差，生产工艺复杂，故售价也较高；多晶硅太阳能电池与单晶硅太阳能电池的性能特点基本相同；非晶硅太阳能电池的转换效率较低（约6～8%左右），面积较大，但因其原材料成本较低，可便于大面积工业化生产，今后最有希望用于一般大面积发电的将是这种电池。随着制造技术和新材料的应用，一旦它的大面积实用组件光电转换效率达到10-15%以上，每瓦发电设备的价格降到1～2美元时，便足以大面积得到广泛应用并将不断取代现在常规能源。当然特殊用途和实验室中的太阳能电池效率要高得多。

The performances of polycrystalline diamond compacts which includes impact resistance, heat stability and wear resistance are introduced.

介绍了聚晶金刚石复合片的主要性能，即抗冲击性能、热稳定性及耐磨性。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。