Specific features of the cathodoluminescence spectra of AlInGaN QWs, caused by the influence of phase separation and internal electric fields
- Авторы: Kuznetsova Y.1, Jmerik V.1, Nechaev D.1, Kuznetsov A.2, Zamoryanskaya M.1
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Учреждения:
- Ioffe Physical–Technical Institute
- Nanotechnology Research and Education Centre, Russian Academy of Sciences
- Выпуск: Том 50, № 7 (2016)
- Страницы: 904-909
- Раздел: 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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Аннотация
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.
Об авторах
Ya. Kuznetsova
Ioffe Physical–Technical Institute
Автор, ответственный за переписку.
Email: yana@mail.ioffe.ru
Россия, St. Petersburg, 194021
V. Jmerik
Ioffe Physical–Technical Institute
Email: yana@mail.ioffe.ru
Россия, St. Petersburg, 194021
D. Nechaev
Ioffe Physical–Technical Institute
Email: yana@mail.ioffe.ru
Россия, St. Petersburg, 194021
A. Kuznetsov
Nanotechnology Research and Education Centre, Russian Academy of Sciences
Email: yana@mail.ioffe.ru
Россия, St. Petersburg, 195220
M. Zamoryanskaya
Ioffe Physical–Technical Institute
Email: yana@mail.ioffe.ru
Россия, St. Petersburg, 194021