Presentation Information

9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8a-N101-3]Effect of Nanowire Height on Emission Uniformity in GaInN/GaN Multi-Quantum Shell Structures

〇Haruki Sawazaki¹, Takuya Takahashi¹, Kouki Yamada¹, Hiroki Teshima¹, Haruki Hotta¹, Himari Suzuki¹, Koichi Naniwae², Kazumasa Niwa², satoshi Kamiyama¹, Tetsuya Takeuchi¹, Motoaki Iwaya¹ (1.MeijoUniversity, 2.E&E Evolution Co.LTD)

Keywords:

nanowire

In core–shell GaN nanowire (NW) lasers, non-uniform emission from the multi-quantum shell (MQS) active region remains a major obstacle to achieving laser oscillation. In this study, the effect of NW height on the emission characteristics was investigated using samples with NW heights of 1.6 µm and 1.3 µm. Cathodoluminescence measurements revealed that the 1.3 µm NWs exhibited improved emission uniformity along the height direction, with the emission center wavelength converging to approximately 415 nm. These results indicate that reducing the NW height is effective for improving emission uniformity and highlight the importance of optimizing the NW height while maintaining a suitable device structure.

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