tdkp/AQUA: Unified modeling of electroluminescence in nanostructures
Steiger, Sebastian ; Veprek, Ratko ; Witzigmann, Bernd
In: Optical and Quantum Electronics, 2009, vol. 41, no. 7, p. 551-557
Ajouter à la liste personnelle- Summary
- This article summarizes the capabilities of the optoelectronic simulation framework tdkp/AQUA aimed at the description of electroluminescence in semiconductor nanostructures such as light-emitting diodes. tdkp is a stand-alone finite-element software able to accurately calculate strain, built-in fields due to spontaneous and piezoelectric polarization, bound quantum states using k · p theory, gain and luminescence spectra in zero- to three-dimensional structures. AQUA calculates transport through nanostructures using a model which accounts for the distinct behaviour of carriers confined to active regions and unconfined carriers. Furthermore, it computes electroluminescence spectra via a self-consistent coupling of the confined carriers to quantum-mechanical calculations using tdkp. Two examples are presented which highlight the versatility and generality of the developed framework