Donor binding energy and radiative life time of exciton in a strained InGaN/GaN quantum wire

Pattammal, M.; Peter, A. John

doi:10.1016/j.spmi.2011.05.015

Cited by 4 publications

(1 citation statement)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[15][16][17] Chafai et al [18] used the variational method to predict that in the spherical GaN/AlN core/shell quantum dot, the external electric field will reduce the binding energy of exciton state, and the increase of quantum dot size will also reduce the binding energy. Pattammal et al [19] studied the influence of well width on exciton radiation life-time in InGaN/GaN quantum wires. The results show that the radiation lifetime decreases monotonically with the increase of well width, and the trend becomes more obvious when the well width is smaller.…”

Section: Introductionmentioning

confidence: 99%

Optical properties of core/shell spherical quantum dots*

Shi

Yan

2020

Chinese Phys. B

View full text Add to dashboard Cite

In this study, the effects of quantum dot size on the binding energy, radiative lifetime, and optical absorption coefficient of exciton state in both GaN/Al x Ga1−x N core/shell and Al x Ga1−x N/GaN inverted core/shell quantum dot structures are studied. For the GaN/Al x Ga1−x N core/shell structure, the variation trend of binding energy is the same as that of radiation lifetime, both of which increase first and then decrease with the increase of core size. For Al x Ga1−x N/GaN inverted core/shell structure, the binding energy decreases first and then increases with core size increasing, and the trends of radiation lifetime varying with core size under different shell sizes are different. For both structures, when the photon energy is approximately equal to the binding energy, the peak value of the absorption coefficient appears, and there will be different peak shifts under different conditions.

show abstract