共查询到19条相似文献,搜索用时 62 毫秒
1.
2.
本文报道了用助熔剂成功地生长大尺寸掺铟BiCaVIG晶体的方法以及实验结果,介绍了该单晶在远红外区的磁光器件中的重要应用。 相似文献
3.
本文报道了用助熔剂成功地生长大尺寸掺铟BiCaVIG晶体的方法以及实验结果,介绍了该单晶在远红外区的磁光器件中的重要应用。 相似文献
4.
5.
6.
7.
8.
9.
10.
11.
12.
Xinbo Yang K. Fujiwara K. Maeda J. Nozawa H. Koizumi S. Uda 《Progress in Photovoltaics: Research and Applications》2014,22(5):574-580
The crystal growth shape (CGS) and equilibrium crystal shape (ECS) of silicon in Si melt are observed using in situ observation. Fully faceted silicon CGSs, which are dominated by the {111} facets, are observed from the {112} and {110} orientation. Silicon CGS in three‐dimensional in Si melt is octahedral in shape, bounded by {111} facets. Silicon ECSs in the melt are obtained by the relaxation from the CGSs and exhibit the {111} facets separated by curved interface. Copyright © 2012 John Wiley & Sons, Ltd. 相似文献
13.
Bulk polycrystalline InP is synthesized from the elements via a gradient freeze process. Hall data for a typical boule are
Nd-Na= 4.7 × 1015/cm3 and Μ77 = 28,000 cm2/V-sec. Photoluminescence data indicate that zinc is present as an acceptor impurity in the polycrystalline InP and in nominally
undoped LEC single crystals grown using the synthesized InP as charge material. A series of doping experiments have determined
the effective segregation coefficient to be 1.6 × 10−3 for Fe in InP. Semi-insulating InP crystals with resistivity > 107 ohm—cm have been grown consistently from melts doped with 150 ppm Fe. 相似文献
14.
15.
16.
17.
18.
采用熔剂-坩埚下降法生长了91%Pb(Zn1/3Nb2/3)O3-9%PbTiO3(PZNT91/9)(摩尔分数)弛豫铁电单晶,PbO助熔剂摩尔分数控制在50%左右。所得晶体被PbO助熔剂包裹,将其浸泡在热HNO3中1~2天即可除去PbO。晶体呈浅黄色,具有明显的结晶学生长面。晶体沿(001)面切出数片,晶片质量明显好于通气Bridgman法生长的PZNT单晶。偏光显微镜可观察到71°、90°、180°畴或微畴区。晶片极化条件为:垂直于C面施加1kV/mm的电场并保持10~15min。 相似文献
19.
采用椭圆偏振光谱法测量了新压电晶体Sr3NbGa3Si2O14(SNGS)在可见光区的折射率,计算了折射率色散系数,拟合得到了Sellmeier方程。并用紫外可见光双光束分光光度计测定了可见光区旋光率以及双折射率。 相似文献