Monocrystalline GaAs layer grown on (100),(111) and (211) Si substrate by hot wall epitaxy two-step growth and direct growth is reported.
报道了采用热壁外延 (HWE)技术 ,在 (10 0 ) ,(111)和 (2 11)三种典型Si表面通过两步生长和直接生长法制备GaAs单晶薄膜 ,经过拉曼光谱、霍尔测试和荧光光谱分析比较 ,得出结论 :(1)相同取向Si衬底 ,两步生长法制备的GaAs薄膜结晶质量比直接生长法制备的GaAs薄膜的要好 ;(2 )采用HWE技术在Si上异质外延GaAs薄膜 ,其表面缓冲层的生长是降低位错、提高外延质量的基础 ;(3)不同取向Si衬底对GaAs外延层结晶质量有影响 ,(2 11)面外延的GaAs薄膜质量最好 ,(10 0 )面次之 ,(111)面最
A method,homogeneous reaction and interface growth,has been used to fabricate nano-materials.
采用均相反应界面生长法成功地制备了多种形貌的纳米铜,讨论了界面生长法制备纳米粒子的机理,考察了界面生长及反应温度的改变对产物形貌的影响。
A Progress of Ⅲ-Ⅴ Compound Semiconductor Devices Grown Directly on Si Substrate
在硅衬底上直接生长Ⅲ—Ⅴ族化合物半导体器件的进展
Foreign Direct Investment and Open Endogenous Economic Growth;
国际直接投资与开放型内生经济增长
long pointed leaf or stem(eg of grass or asparagus)growing directly out of the ground
长而尖的叶或茎（直接从地面生出的,如草或芦荀）
an abnormality of development in which the upper part of an arm or leg is missing so the hands or feet are attached to the body like stumps; rare condition that results from taking thalidomide during pregnancy.
先天缺少肢体的上部下部直接长在生体上。
Foreign Direct Investment, Spillover Effect and Endogenenous Economics Growth;
外商直接投资、外溢效应与内生经济增长
Preparation and Measurements of InP/GaAs(100) Heteroepitaxy
GaAs衬底上InP的直接外延生长及性能表征
Growth of Ultra-Long and Macro-Aligned Carbon Nanofibers on Nickel Substrate
直接在金属基片上生长超长宏观定向纳米碳纤维
She's directly responsible to the Minister.
她直接受部长领导.
These compounds are all intimately involved in the growth and reproduction of the plant.
这些化合物全部直接参与了植物的生长和繁殖过程。
BTH had no direct inhibition to the spore germination and mycelial growth.
BTH对炭疽菌孢子萌发及菌丝生长均无直接抑制作用。
We consider next the electric field set up by a long thin uniformly charged wire.
我们接着讨论由一细长、均匀带电的直导线所产生的电
Economists broadly accept that FDI helps productivity grow.
经济学家普遍认为外商直接投资有助于生产率增长。
Application of Cationic Liposome and Direct Injection Method to Express hGH in Mice in vivo
应用脂质体及直接注射法在小鼠体内表达人生长激素的研究
Direct Effects of Soil Cadmium and Lead on Growth of Arbuscular Mycorrhizal Fungi;
土壤中重金属镉铅对丛枝菌根真菌生长的直接影响研究
The Effect of FDI and R&D on Domestic Productivity Growth:An Empirical Study;
外商直接投资与研发对国内企业生产率增长影响的实证研究
Direct Effects of Lead Contamination on the Growth of Arbuscular Mycorrhizal Fungi
土壤中重金属铅对不同AM真菌生长发育的直接效应研究
Direct experimental evidence for detailed growth of SiO_x nanowire during CVD
CVD制备SiO_x纳米线的各个生长阶段的直接实验证据
Scaling approach to the conservation-law growth equations in anomalous surface roughening
含有广义守恒律的生长方程标度奇异性的直接标度分析