Ribbon-type LiNbO3 single crystal growth method using capillary effect as driving force

摘要

A method for producing LiNbO3 single crystal is composed of (I) drying Li1+xNb1+xO3 (0.1=X = 0.2) base material at 150-200C, (2) mixing and crushing, (3)recrushing for 12hrs at 7200 after synthesizing, (4)heat treating at 1300C in crystal growing furnace with Mo single crystal plate seed, (5)poling at 240C which is higher than curie temp. The driving force in process (4), is capillary force and the thickness of the single crystal can be controlled by controlling that of Mo plate. This method has the advantage of low price for single crystal production and low loss of ingot during cutting.