天宫二号ZnTe:Cu晶体生长及能谱分析（英文）
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摘要
在微重力条件下生长了ZnTe:Cu晶体,对其进行了光学和能谱分析,在晶锭尾部最大结晶区对其进行了组分分析.对于尾部的轴向分量,在空间样品中Cu的成分均匀性优于地面样品,并且Te/Zn比的样品高于空间样品.尾部空间样品中Cu的径向成分均匀性优于地面样品,且Te偏析更为严重.
The ZnTe: Cu crystals grown under microgravity and on ground are characterized by optical and energy dispersive spectrum analysis. The radial and axial spectra of the largest crystal at the end of the ingot are analyzed.For the axial component of the tail section,the compositional uniformity of Cu in the space sample is better than that of the ground sample,and the Te/Zn ratio of the ground sample is higher than that of the space sample. The radial compositional uniformity of Cu in the space sample of the tail section is better than that of the ground sample,and the Te segregation of the ground sample is more serious.
The ZnTe: Cu crystals grown under microgravity and on ground are characterized by optical and energy dispersive spectrum analysis. The radial and axial spectra of the largest crystal at the end of the ingot are analyzed.For the axial component of the tail section,the compositional uniformity of Cu in the space sample is better than that of the ground sample,and the Te/Zn ratio of the ground sample is higher than that of the space sample. The radial compositional uniformity of Cu in the space sample of the tail section is better than that of the ground sample,and the Te segregation of the ground sample is more serious.
引文
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[2]V. I. Kozlovsky,A. B. Krysa,Yu. V. Korostelin,MBE growth and characterization of ZnTe epilayers and ZnCdTe/Zn Te structures on Ga As(1 0 0)and ZnTe(1 0 0)substrates[J]. Journal of Crystal Growth 2000:(214/215)35-39.
[3]ZHAO Jiaohua,WANG Wenkui,Research Progress in the Crystal from Vapor Phase in Space[J]. Progress in Physics,1998,18(3):283-307.
[4]E. B. Borisenko,N. N. Kolesnikov,A. S. Senchenkov,M. Fiederle,Crystal growth of Cd1-xZnxTe by the traveling heater method in microgravity onboard of Foton-M4 spacecraft[J]. Journal of Crystal Growth. 2017,(457)262-264.
[5]Mikito Mamiya*,Hideaki Ngai,Martin Castillo,et al. The analysis of CdTe solidification in absence of thermal convection via short-duration microgravity[J]. Journal of Crystal Growth,2006,(295):209-216.
[6]Croll A,Kaiser T,Schweizer A N. Floating-zone and floating-solution-zone growth of Ga Sb under microgravity[J]. Journal of Crystal Growth,1998,(191):365.
[7]WANG Reng,LI Xiangyang,LU Ye. Research of CdZnTe crystal Vapor growth under Microgravity[J]. Infrared,2013,34(11):8-12.
[8]Wang Reng,Li Xiangyang. Characterization of CdZnTe crystal using THz time-domain spectroscopy[J]. SPIE 2012.
[9]LU Ye,WANG Reng,et al. Growth of ZnTe crystal in microgravity on Tiangong-2 spaceship(in Chinese)[J]. Chin. J. Space Sci.,2018,38(2):234-238.
[10]WANG Reng,LU Ye,et al. Cathodoluminescence characterization analysis and growth of ZnTe:Cu under Microgravity(in Chinese)[J].J. Infrered Millim. Waves,2018,2(1):47-49.