Abstract
Attempts to grow single crystals of electro-optic organic compounds in capillary tubes by the conventional Stockbarger technique usually fail. The crystals are discontinuous being broken into pieces hundreds of micrometers in length for tube diameters of less than fifty micrometres. If the furnace is inverted and the molten material is drawn up into the colder zone, continuous crystals can be formed. From a study of the physical properties of 1:3 dinitrobenzene a lower limit for the diameter of a capillary tube is established for the growth of good single crystals by the usual Stockbarger method. On the other hand, it is shown that, if there is an adequate supply of the molten material, there is no fundamental reason why infinitely long organic single crystal should not be grown by the inverted technique.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
