Top-seeded solution growth of 4H-SiC bulk crystal using Si-Cr based melt

H. Daikoku, M. Kado, H. Sakamoto, H. Suzuki, T. Bessho, K. Kusunoki, N. Yashiro, N. Okada, K. Moriguchi, K. Kamei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

34 Citations (Scopus)

Abstract

We have grown high-quality long cylindrical (12 mm thick) 4H-SiC bulk crystals by the meniscus formation technique, which was first applied for the solution growth of bulk SiC. It enabled long-term growth by suppressing parasitic reactions such as polycrystal precipitation around the seed crystal. In addition, we could control the growth angle from -22° to 61° by adjusting the meniscus height. The thickness of the grown cylindrical crystals was 12 mm, which is the largest reported until now, and corresponded to a growth rate of 0.6 mm/h. Smooth morphology growth was maintained on the (000-1) C-face. In cross-sectional transmission optical microscopy images, few solvent inclusions and voids were observed. XRD measurements revealed that the FWHM values of the grown crystals were almost the same as those of the seed crystal.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages61-64
Number of pages4
Volume717-720
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event14th International Conference on Silicon Carbide and Related Materials 2011, ICSCRM 2011 - Cleveland, OH, United States
Duration: 2011 Sep 112011 Sep 16

Publication series

NameMaterials Science Forum
Volume717-720
ISSN (Print)02555476

Other

Other14th International Conference on Silicon Carbide and Related Materials 2011, ICSCRM 2011
CountryUnited States
CityCleveland, OH
Period11/9/1111/9/16

Keywords

  • 4H SiC
  • Meniscus
  • Solution growth

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

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  • Cite this

    Daikoku, H., Kado, M., Sakamoto, H., Suzuki, H., Bessho, T., Kusunoki, K., Yashiro, N., Okada, N., Moriguchi, K., & Kamei, K. (2012). Top-seeded solution growth of 4H-SiC bulk crystal using Si-Cr based melt. In Materials Science Forum (Vol. 717-720, pp. 61-64). (Materials Science Forum; Vol. 717-720). https://doi.org/10.4028/www.scientific.net/MSF.717-720.61