In this work we study the growth mechanisms of InGaN in plasma-assisted molecular beam epitaxy (PAMBE). We investigate growth of InGaN layers on vicinal GaN (0001) substrates. Indium incorporation as a function of gallium and nitrogen fluxes was examined. We propose microscopic model of InGaN growth by PAMBE postulating different indium adatom incorporation mechanisms on two nonequivalent atomic step edges of wurtzite crystal. The different roles of gallium and nitrogen fluxes during the growth of InGaN layers is discussed.

Date Published: 27 March 2013
PDF: 9 pages
Proc. SPIE 8625, Gallium Nitride Materials and Devices VIII, 862527 (27 March 2013); doi: 10.1117/12.2003850

Published in SPIE Proceedings Vol. 8625:
Gallium Nitride Materials and Devices VIII
Jen-Inn Chyi; Yasushi Nanishi; Hadis Morkoç; Joachim Piprek; Euijoon Yoon; Hiroshi Fujioka, Editor(s)