Journal of Applied Physics 84(4), 1813 (98).
The valence subband structures, density-of-states, and optical gain of (0001) wurtzite (WZ) InxGa1-xN/GaN quantum wells (QWs) are studied. The effects of quantum confinement and compressive strain are examined by varying the well width and mole fraction of In in the well material. A narrower well width and a higher In mole fraction in the well lead to TE enhancement and TM suppression of the optical gain. The transparent current density for a single QW is obtained to be 200 A/cm2. The InGaN/GaN/AlGaN separate confinement heterostructure multiple-QW laser structure is also analyzed and optimized for lower threshold current density.
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Contributed by YC Yeo from soi.eecs.berkeley.edu. on Tuesday, July 28, 1998 8:12:45 PM
last updated Wednesday, May 4, 2005 11:48:30 AM.
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