典型文献
Annealing and optical homogeneity of large ZnGeP2 single crystal
文献摘要：
A high-quality ZnGeP2(ZGP)single crystal with large size of Φ30 mm×80 mm was grown by a modified vertical Bridgman method.ZGP wafers were annealed with ZGP polycrystalline powder for 300 hat 550,600 and 650℃,respectively.The as-grown and annealed crystals were char-acterized by X-ray diffraction(XRD)analysis,Fourier transform infrared spectroscopy(FTIR),IR microscope and energy-dispersive spectroscopy(EDS).Results show that the quality of all wafers is improved evidently after annealing and the optimum annealing temperature obtained is 600℃.The IR transmittance of the wafer measured by FTIR is up to 56.78％at wavelength of 2.0 μm nearby and exceeds 59.00％in the wavelength range of 3.0-8.0 μm.The devia-tions from stoichiometry decrease,and the homogeneity of the crystal is also improved after annealing.In this paper,scan-ning infrared map was proposed as a new nondestructive method to evaluate optical quality and homogeneity of crystal through comparing the IR transmittance with the three-di-mensional IR spectral contour map.
文献关键词：
中图分类号：
作者姓名：
Li-Qiang Cao;Bei-Jun Zhao;Shi-Fu Zhu;Bao-Jun Chen;Zhi-Yu He;Deng-Hui Yang;Hui Liu;Hu Xie
作者机构：
College of Materials Science and Engineering,Sichuan University,Chengdu 610064,China
文献出处：
引用格式：
[1]Li-Qiang Cao;Bei-Jun Zhao;Shi-Fu Zhu;Bao-Jun Chen;Zhi-Yu He;Deng-Hui Yang;Hui Liu;Hu Xie-.Annealing and optical homogeneity of large ZnGeP2 single crystal)[J].稀有金属（英文版）,2022(09):3214-3219
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B类：
Annealing,optical,homogeneity,large,ZnGeP2,single,high,quality,ZGP,size,was,grown,modified,vertical,Bridgman,method,wafers,were,annealed,polycrystalline,powder,respectively,crystals,char,acterized,ray,diffraction,analysis,Fourier,transform,infrared,spectroscopy,FTIR,microscope,energy,dispersive,EDS,Results,show,that,improved,evidently,after,annealing,optimum,temperature,obtained,transmittance,measured,up,wavelength,nearby,exceeds,range,devia,tions,from,stoichiometry,decrease,also,In,this,paper,scan,ning,map,proposed,new,nondestructive,evaluate,through,comparing,three,mensional,spectral,contour
AB值：
0.558396
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