Ordered arrays of bottom-up III-nitride core-shell nanostructures

Ashwin K. Rishinaramangalam; Mohsen Nami; Benjamin N. Bryant; Rhett F. Eller; Darryl M. Shima; Michael N. Fairchild; Ganesh Balakrishnan; S. R. J. Brueck; Daniel F. Feezell

doi:10.1117/12.2191726

26 August 2015 Ordered arrays of bottom-up III-nitride core-shell nanostructures

Ashwin K. Rishinaramangalam, Mohsen Nami, Benjamin N. Bryant, Rhett F. Eller, Darryl M. Shima, Michael N. Fairchild, Ganesh Balakrishnan, S. R. J. Brueck, Daniel F. Feezell

Author Affiliations +

Proceedings Volume 9553, Low-Dimensional Materials and Devices; 955308 (2015) https://doi.org/10.1117/12.2191726
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

Abstract

The growth of ordered arrays of group III-nitride nanostructures on c-plane gallium nitride (GaN) on sapphire using selective-area metal organic chemical vapor deposition (MOCVD) is presented. The growth of these nanostructures promotes strain relaxation that allows the combination of high indium content active regions with very low dislocation densities and also gives access to nonpolar and semipolar crystallographic orientations of GaN. The influence of the starting template and the growth conditions on the growth rate and morphology is discussed. The growth of indium gallium nitride (InGaN) active region shells on these nanostructures is discussed and the stability of various crystallographic orientations under typical growth conditions is studied. Finally, the effect of the growth conditions on the morphology of pyramidal stripe LEDs is discussed and preliminary results on electrical injection of these LEDs are presented.

Conference Presentation

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Ashwin K. Rishinaramangalam, Ashwin K. Rishinaramangalam, Mohsen Nami, Mohsen Nami, Benjamin N. Bryant, Benjamin N. Bryant, Rhett F. Eller, Rhett F. Eller, Darryl M. Shima, Darryl M. Shima, Michael N. Fairchild, Michael N. Fairchild, Ganesh Balakrishnan, Ganesh Balakrishnan, S. R. J. Brueck, S. R. J. Brueck, Daniel F. Feezell, Daniel F. Feezell, } "Ordered arrays of bottom-up III-nitride core-shell nanostructures", Proc. SPIE 9553, Low-Dimensional Materials and Devices, 955308 (26 August 2015); doi: 10.1117/12.2191726; https://doi.org/10.1117/12.2191726

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