Presentation Information

5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[15p-W2_401-13]Spatial Luminescence Characterization of InGaN Single Quantum Wells and Underlayer-Inserted Quantum Wells Using Cathodoluminescence Spectral Imaging

〇(M1)Daichi Tsujii¹, Ryunosuke Fuku¹, Zentaro Akase¹, Kazunori Iwamitsu¹, Shigetaka Tomiya¹ (1.NAIST)

Keywords:

Cathodoluminescence Spectral Imaging,Spatial Luminescence Characterization,Quantum Well

In InGaN quantum wells (QWs), introducing an underlayer (UL) prior to QW growth is known to improve luminescence properties; however, spatially resolved studies remain limited. We performed cathodoluminescence (CL) spectral imaging on a single quantum well (SQW) and a SQW with a UL. While no significant difference was observed in the spectral lineshapes, the emission intensity showed improvement in the SQW with a UL. We will report and discuss analyses of the spatial distributions using a combined approach of principal component analysis (PCA) and hierarchical clustering.

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