2009 Fiscal Year Final Research Report
Improvements in crystalline quality of InN for the realization of P-type doping by using a growth mode control
| Project/Area Number |
20760010
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Applied materials science/Crystal engineering
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
MURAKAMI Hisashi Tokyo University of Agriculture and Technology, 大学院・共生科学技術研究院, 助教 (90401455)
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| Project Period (FY) |
2008 – 2009
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| Keywords | エピタキシャル成長 |
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| Research Abstract |
In this research, I aim to realize the P-type doping of InN by metalorganic vapor phase epitaxy(MOVPE) through the reduction of threading dislocations in the InN crystal by controlling the growth mode and selective growth.
For fiscal 20th, Facet control of InN was performed for the improvement of crystalline quality of InN layers on GaAs (111)B by MOVPE. It was found that the crystalline quality of InN could be improved by employing a growth mode change during epitaxial growth from three-dimensional (3D) to two-dimensional (2D), indicating a reduction of dislocation density with one order of magnitude. Selective growth of InN on the round opening patterned GaAs (111)B substrate was performed for improving the crystalline quality for fiscal 21st. Selective growth of InN layer without the deposition on the SiO2 mask could be possible by raising the growth temperature up to 615 oC.
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