GaN quantum dots and wires
Gallium nitride is a wide band gap material that has found its way into many applications, mainly due to its emission in the blue and UV wavelength regions. Quantum size effects can be used for tuning the emission from such materials, and GaN quantum dots (QD) and quantum wires (QW) have been suggested for a plethora of technological applications, ranging from blue LEDs, photodetectors, and blue lasers to fluorescent bioprobes.
We study colloidal QDs and solid-state GaN QDs and QWs in AlN matrices, where the quantum-chemical computations are utilized to elucidate the mcroscopic origin of the luminiscence properties. This will enable us to suggest novel quantum structures with tailor-made optical properties,
Lars Ojamäe, Maria Lundqvist, Mathias Kula, Barbara Brena
Surface effects and quantum confinement in nanosized GaN
clusters: theoretical predictions
B. Brena and L. Ojamäe
J. Phys. Chem. C 112, 13516-13523 (2008)