Volume 38 Issue 2
Mar.  2018
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LU Ye, WANG Reng, DU Yunchen, JIAO Cuiling, LI Xiangyang. Growth of ZnTe Crystal in Microgravity on Tiangong-2 Spaceshipormalsize[J]. Journal of Space Science, 2018, 38(2): 234-238. doi: 10.11728/cjss2018.02.234
Citation: LU Ye, WANG Reng, DU Yunchen, JIAO Cuiling, LI Xiangyang. Growth of ZnTe Crystal in Microgravity on Tiangong-2 Spaceshipormalsize[J]. Journal of Space Science, 2018, 38(2): 234-238. doi: 10.11728/cjss2018.02.234

Growth of ZnTe Crystal in Microgravity on Tiangong-2 Spaceshipormalsize

doi: 10.11728/cjss2018.02.234
  • Received Date: 2017-08-22
  • Rev Recd Date: 2018-01-11
  • Publish Date: 2018-03-15
  • Zinc telluride crystal was grown by Te-solvent method in microgravity on Tiangong-2 spaceship in 2016. The growth temperature is 800℃, and the growth rate is 0.5mm·h-1. A ground-truth experiment was performed following the space experiment, and a comparison between the two samples was studied. An orange ZnTe crystal (its size is about 10mm×6mm×2mm) can be found in the space sample. It is shown that the crystal size of space sample is larger than that of the ground sample. Because of the capillary phenomenon in microgravity, Te and ZnTe film were grown at the surface of the silicon rod of the space sample. However, a little bit of gaseous product was found at the ground sample. This result underlines the importance of microgravity for crystal growth of Group Ⅱ~VI semiconductor material. It gives the positive guidance on the growth of infrared semiconductor materials on ground such as HgCdTe, CdZnTe and ZnTe.

     

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