作者: Pouyan Motamedi , Neda Dalili , Kenneth Cadien
DOI: 10.1039/C5TC01556A
关键词: Optics 、 Band gap 、 Saturation velocity 、 Single crystal 、 Atomic layer deposition 、 Sapphire 、 Gallium nitride 、 Materials science 、 Electron mobility 、 Epitaxy 、 Optoelectronics
摘要: Gallium nitride (GaN) was deposited on sapphire at 275 °C, using plasma-enhanced atomic layer deposition. The films are single-crystal for the first ∼5 nm, before they transition to a polycrystalline structure. These structural shifts are reflected in the variations of the refractive index.