Epitaxial growth of (011) Al on (100) Si by vapor deposition

Abstract
The morphology, orientation relationship and interface structure of Al vapor deposited on (100) Si single-crystal substrates were investigated by x-ray diffraction and transmission electron microscopy. It was shown that vapor growth at room-temperature results in a random (111) texture whereas growth at 280 °C leads to films with high-quality (011) epitaxy and a high degree of grain boundary faceting. Due to alignment of close-packed directions in the plane of the interface there are two orientation variants with a morphology characterized by an oriented 90° 〈011〉 mazed bicrystal structure.