Thick, self-separated GaN layers have been grown by hydride vapor phase epitaxy (HVPE) on templates with SiN-interlayers, which worked as the separation layer. The used templates were prepared by metalorganic vapor phase epitaxy (MOVPE) to start with an excellent seed layer. As several groups reported, it was observed, that by using only one SiN-interlayer, the dislocation density could be redu...

Air quality models that generate the concentrations of semi-volatile and other condensable organic compounds using an explicit reaction mechanism require estimates of the vapour pressures of the organic compounds that partition between the aerosol and gas phases. The model of Griffin, Kleeman and co-workers (e.g., Griffin et al., 2005) assumes that aerosol particles consist of an aqueous phase,...