Low temperature solution growth of high quality AlN single crystal using Cr-alloy solvent
| Project/Area Number |
26630376
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Metal making/Resorce production engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 窒化アルミニウム / 溶液成長 / 直接観察 / 溶解度 / 界面観察 |
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| Outline of Final Research Achievements |
In the present work, research on solution growth of AlN using Cr-alloy solvent was conducted. Firstly, nitrogen and AlN solubilities in Cr-alloy were measured, and higher AlN solubility in Cr-Ni alloy than previous solvent was determined. Secondary, solution growth of AlN using Cr-Ni alloy was examined. Solution growth using Cr-44mol%Ni and Cr-30mol%Ni alloys was performed, and the highest growth rate of 300 micron/h was achieved on the AlN-coated sapphire seed. Furthermore, the apparatus for direct-observation of AlN growth through sapphire substrate was fabricated, and the observation of island growth of AlN on sapphire substrate was successfully achieved at 1600℃.
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Report
(3 results)
Research Products
(3 results)
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[Presentation] Solution growth of AlN using Cr-Ni solvent2014
Author(s)
4.Hiroki Yoshitome, Sakiko Kawanishi, Hideaki Sasaki, Takeshi Yoshikawa and Masafumi Maeda
Organizer
The 10th European Conference on Silicon Carbide & Related Materials
Place of Presentation
Grenoble, France
Year and Date
2014-09-24
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