查询词典 silicon

But in cast multicrystalline silicon, the copper-precipitation temperature was about 700℃, much lower than that in as-grown Cz silicon.

在原生的直拉单晶硅中，铜沉淀的温度为800℃，这与由前人的理论所推导出的结果一致。

But in cast multicrystalline silicon, the copper-precipitationtemperature was about 700℃, much lower than that in as-grown Cz silicon.

虽然都是快扩散的过渡族金属元素，镍在单晶硅中的沉淀性质在很多方面与铜不同。

The yield of solar cells increased greatly in recent years. Crystalline silicon solar cells are market mainstream all the same and the multicrystalline silicon cell occupies fifty-three percent of all the markets.

最近几年，太阳能电池的产量以前所未有的速度增长，晶体硅电池依然占据市场的主流，其中多晶硅占据市场的53%。

However, iron precipitate could hardly be found by scanning infrared microscopy in the specimen annealed lower than 1100℃ so that iron-precipitation temperature in monocrystalline silicon or cast multicrystalline silicon could not be determined.

然而，用红外扫描电镜等很难观察到热处理温度低于1100℃处理过的样品中是否存在铁沉淀，所以无论是对于直拉单晶硅还是对于铸造多晶硅，很难确定铁的沉淀温度。

Solar cells can now be made from a range of materials, from the traditional multicrystalline silicon wafers that still dominate the market to thin-?lm silicon cells and devices com- posed of plastic or organic semiconductors.

目前太阳能电池可通过一系列材料制造，从仍主导着市场的传统多晶硅片到薄膜硅电池以及由塑料或有机半导体组成的设备。

Under the experimental conditions in this study, when the silicon powder with a particle size of 2.7 μm is used as raw materials, with a nitridation temperature of 1380℃ and nitridation time of 54.5 s, the conversion rate of silicon is 22.5%.

在本文条件下，当以平均粒径2.7μm的硅粉为原料、氮化温度为1380℃、氮化时间为54.5 s时，硅的转化率为22.5%。

Using silicon and metallic iron,α-Si_3N_4 olivary microparticles with a diameter of about 300～500 nm have been obtained at 650℃.When silicon and metallic aluminium were used to react with ammonium chloride,α-Si_3N_4 nanowire bundles with diameter of about 8 nm can be also obtained at 600℃.Since all of the starting materials used are relatively cheap,the methods will have potential prospect in industrial application.3.Graphite-like carbon nitride nanowire bundles with diameters of 200-500 nm were synthesized from the solid state thermolysis of melamine at relatively low temperature(400℃).

相关研究工作的成果发表在International journal of applied ceramicstechnology.2、以廉价的硅铁合金和氯化铵为原料，在600℃合成了α相的氮化硅纳米线束，单根纳米线直径8 nm，长达800 nm，考察了反应温度和反应时间对产物纯度和形貌的影响；以硅粉和铁粉为原料合成了纯度良好，直径为150～500 nm的α-Si_3N_4亚微粒子；以硅粉和铝粉为原料在400-600℃合成了直径为10 nm左右的α相氮化硅纳米线束。

Photoluminescent porous silicon was prepared by electrochemical dissolution of silicon wafer in HF solution.

在本文的第一章中，对当前多孔硅研究领域的研究成果进行了综述。

Based on the molecular mechanisms guiding the biosilicification in marine organisms such as diatoms and sponges, cell wall template-mediated self assembly of nanostructured silica in plants and related morphogenesis, structures and functions of phytogenic silica are discussed. Understanding the templating and organic-inorganic bicomponent cooperation effects not only offers the clue for constructing silicon-based structures, but also recognizes the anomaly of silicon in plant biology, esp. in stress physiology.

借助海洋生物如硅藻和海绵的生物硅化机制，从植物体矿化纳米结构SiO〓的形态发生、结构和功能分析入手，运用植物营养学、植物病理学、纳米化学、生物矿化的原理和技术，重点研究了以植物细胞壁为模板构筑有机／无机二元协同纳米结构SiO〓，以及它们具有的特殊结构所赋予植物抵抗各种环境胁迫的可能作用，获得的主要结果如下

Results show that protons are liberated by dehydration or dehydroxylation after calcination at 500℃. These protons disrupt the silicon-oxygen-aluminium bridges where there are Al substitutions in the tetrahedral sheet of the montmorillonite. Some of silicon-oxygen and aluminum-oxygen tetrahedral invert to react with the pillaring agents and yield covalent bonds which firmly fix the pillars to the host clay. The Al-MMT are thermally and hydrothermally stable up to 700℃.

经过500℃高温焙烧后，交联剂经脱水或脱羟基释放出质子攻击蒙脱土四面体层中Si-O-Al四键，硅氧四面体和铝氧四面体发生翻转，与交联剂发生反应生成共价键，形成稳定的层柱黏土材料，在700℃高温下，Al-MMT材料不仅具有较好的热稳定性，而且具有较好的水热稳定性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。