<i>In Situ</i> Observation of the Growing Surface Morphology of KDP Crystals by Microscope

Abstract

A kind of in-situ crystal growth observation system for solution temperature reduction method was designed. The growth surface morphology of KDP crystal was observed by this system. Dislocation hillocks with elliptical shape were clearly distinguished on the {100} face. The dynamics process of morphology evolvement on growth surface of KDP crystals was recorded and analyzed. The growth velocity of the step trains generated from dislocation hillocks was about ~10-4.

The heteroepitaxial growth of KDP/ADP

“…It is worth noting that in the homogeneous solid-liquid crystal growth process, the phenomenon that large amounts of small pyramids gradually evolved into a large pyramid will still show in (001) plane [8,18], but under this situation, all the surfaces in crystal grown faster and would evolve into a larger size in (001) plane on each piece of monocrystal compared to the heteroepitaxial growth process. This proved the statement that these growing points may be originated from the defects produced by partial corrosions between solvent and the substrate which was also appropriate for the situation of homogeneous solid-liquid crystal growth.…”