Screw dislocation-induced growth spirals as emissive exciton localization centers in Al-rich AlGaN/AlN quantum wells

Screw dislocations in Al-rich AlGaN/AlN quantum wells cause growth spirals with an enhanced Ga incorporation, which create potential minima. Although screw dislocations and their surrounding potential minima suggest non-radiative recombination processes within growth spirals, in reality, screw dislo...

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Bibliographic Details
Main Authors: Mitsuru Funato, Ryan G. Banal, Yoichi Kawakami
Format: Article
Language:English
Published: AIP Publishing LLC 2015-11-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4935567