Journal
APPLIED PHYSICS LETTERS
Volume 96, Issue 23, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3443734
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Funding
- Ministry of Education, Culture, Sports, Science, and Technology, Japan [18069010, 21310087]
- Grants-in-Aid for Scientific Research [21310087] Funding Source: KAKEN
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A novel technology for controlling the In composition of InGaN quantum wells on the same wafer was developed, which paved the way for the monolithic integration of three-primary-color nano-light-emitting diodes. In the experiment, InGaN/GaN multiple quantum well nanocolumn arrays with nanocolumn diameters from 137 to 270 nm were prepared on the same substrate with the Ti-mask selective area growth by rf-plasma-assisted molecular beam epitaxy. The emission color changed from blue to red (from 479 to 632 nm in wavelength) with increasing nanocolumn diameter. The emission color change mechanism was clearly explained by the beam shadow effect of the neighboring nanocolumns. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3443734]
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