Scopus
🔓 Açık Erişim
Temperature-Related Electronic Low-Lying States in Different Shapes In<inf>.1</inf>Ga<inf>.9</inf>N/GaN Double Quantum Wells under Size Effects
Trends in Sciences · Eylül 2022
Makale Bilgileri
DergiTrends in Sciences
Yayın TarihiEylül 2022
Cilt / Sayfa19
Scopus ID2-s2.0-85137727526
Erişim🔓 Açık Erişim
Özet
In this paper, we report the electronic states of hydrogenic impurity in InGaN/GaN double quantum wells (DQWs) with different shapes using a numerical procedure within the effective mass approximation. The effects of temperature, impurity position and size on the 1S-, 2S-and 2P-low-lying states are investigated for rectangular, parabolic and triangular finite potential confinements. Our results reveal that the binding energy versus the well width displays a maximum value around the effective Bohr radius and a larger value is obtained for rectangular compared to parabolic and triangular profiles. Moreover, regardless the size and impurity’s position, it is found that the main impact of the temperature is to shrink the binding energy. It is obtained that the binding energy drop is about 3.48 meV for rectangular and 4.26 meV for both parabolic and triangular profiles. Moreover, as the impurity is moved from the right barrier center to the structure center, the 1S-binding energy improvement is about 77.6 % in rectangular whereas it exceeds 91.4 % for other profiles. It is established that the binding energy can be easily modulated by adjusting the temperature, structure size and impurity's position. The results we obtained agree quite well with the findings.
Yazarlar (6)
1
Walid Belaid
ORCID: 0000-0001-9810-9386
2
Haddou El Ghazi
ORCID: 0000-0002-2139-2360
3
Redouane En-nadir
ORCID: 0000-0002-5064-0028
4
Hamdi Şükür Kılıç
5
Izeddine Zorkani
ORCID: 0000-0003-2794-3132
6
Anouar Jorio
Anahtar Kelimeler
Binding energy
Coupling
Double quantum wells
Ga)N
(In
Temperature
Kurumlar
Hassan II University of Casablanca
Casablanca Morocco
Laboratoire de Physique du Solide, Université Sidi Mohamed Ben Abdellah
Fez Morocco
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
4
Atıf
6
Yazar
6
Anahtar Kelime