TIBERCAD: A new multiscale simulator for electronic and optoelectronic devices

In the last years GaN-based heterostructures have attracted much attention for their application as optoelectronic devices. The strain due to lattice mismatch of the constituent materials plays a crucial role in the behaviour of these structures, especially if they are of reduced dimensions, as e.g. nanocolumns. We show an implementation of a new device simulator which accounts for strain-related effects and quantum mechanical properties and couples them with the transport of the quasi-particles in the system. Simulations of an AlGaN/GaN nanocolumn LED are reported as an example. (c) 2007 Elsevier Ltd. All rights reserved.