用混合有限元/原子法模拟嵌入AlGaN纳米柱的GaN量子点光学特性

G. Penazzi, A. Pecchia, F. Sacconi, M. Auf der Maur, M. Povolotskyi, G. Romano, A. Di Carlo
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引用次数: 2

摘要

利用TiberCAD模拟器计算了嵌入AlGaN纳米柱中的GaN量子点的光电特性。计算强调了生长方向在决定这种发光器件的量子效率中的作用。采用多波段kldrp,通过漂移扩散和应变计算进行校正。结果使用经验紧密绑定方法进行讨论,与在TiberCAD框架中实现的kldrp具有相同的宏观校正。
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Simulations of Optical Properties of a GaN Quantum Dot Embedded in a AlGaN Nanocolumn within a Mixed FEM/atomistic Method
Calculations of optoelectronic properties of a GaN quantum dot embedded in an AlGaN nanocolumn are presented, using the TiberCAD simulator. The calculations emphasize the role of the growth direction in determining the quantum efficiency of such light emitting devices. Multiband kldrp is used, with corrections from drift diffusion and strain calculations. Results are discussed using an empirical tight binding method, with the same macroscopic corrections as for kldrp, implemented in TiberCAD framework itself.
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