Specific features of the cathodoluminescence spectra of AlInGaN QWs, caused by the influence of phase separation and internal electric fields
- Autores: Kuznetsova Y.1, Jmerik V.1, Nechaev D.1, Kuznetsov A.2, Zamoryanskaya M.1
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Afiliações:
- Ioffe Physical–Technical Institute
- Nanotechnology Research and Education Centre, Russian Academy of Sciences
- Edição: Volume 50, Nº 7 (2016)
- Páginas: 904-909
- Seção: Semiconductor Structures, Low-Dimensional Systems, and Quantum Phenomena
- URL: https://journals.rcsi.science/1063-7826/article/view/197402
- DOI: https://doi.org/10.1134/S1063782616070125
- ID: 197402
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Resumo
The specific features of the cathodoluminescence (CL) spectra in AlInGaN heterostructures, caused by the influence of phase separation and internal electric fields, observed at varied CL excitation density, are studied. It is shown that the evolution of the CL spectrum and the variation in the spectral position of emission lines of nanoscale layers with current density in the primary electron beam makes it possible to identify the occurrence of phase separation in the layer and, in the absence of this separation, to estimate the electric-field strength in the active region of the structure.
Sobre autores
Ya. Kuznetsova
Ioffe Physical–Technical Institute
Autor responsável pela correspondência
Email: yana@mail.ioffe.ru
Rússia, St. Petersburg, 194021
V. Jmerik
Ioffe Physical–Technical Institute
Email: yana@mail.ioffe.ru
Rússia, St. Petersburg, 194021
D. Nechaev
Ioffe Physical–Technical Institute
Email: yana@mail.ioffe.ru
Rússia, St. Petersburg, 194021
A. Kuznetsov
Nanotechnology Research and Education Centre, Russian Academy of Sciences
Email: yana@mail.ioffe.ru
Rússia, St. Petersburg, 195220
M. Zamoryanskaya
Ioffe Physical–Technical Institute
Email: yana@mail.ioffe.ru
Rússia, St. Petersburg, 194021