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HIRAYAMA , Hideki

Last name: HIRAYAMA

First name: Hideki

November 21, 2023 (v1)

Journal article

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Excitons in (Al,Ga)N quantum dots and quantum wells grown on (0001)-oriented AlN templates: Emission diagrams and valence band mixings

Ibanez, Alexandra Nikitskiy, Nikita Zaiter, Aly

The luminescence efficiency of AlxGa1−xN quantum dots (QDs) and quantum wells (QWs), buried in AlN cladding layers and emitting in the ultraviolet range between 234 and 310 nm, has been investigated. The growth and optical properties have been done using similar aluminum composition (varying from 0.4 to 0.75) for both QDs and QWs. In order to...

Uploaded on: December 15, 2023
May 30, 2024 (v1)

Journal article

Metadata-only

The Influence of Alloy Disorder Effects on the Anisotropy of Emission Diagrams in (Al,Ga)N Quantum Wells Embedded into AlN Barriers

Ibanez, Alexandra Leroux, Mathieu Nikitskiy, Nikita

The polarized photoluminescence emitted on the edge of a series of aluminum‐rich (Al,Ga)N‐AlN quantum wells (QWs) grown by molecular beam epitaxy on AlN templates deposited by metal organic chemical vapor deposition on c‐plane sapphire is measured. The contrast and the principal axis of the emission diagrams for 2 nm‐thick (Al,Ga)N QWs grown...

Uploaded on: January 13, 2025