Growth and characterization of organic single crystals by modified vertical bridgman technique

Abstract

Crystal growth involves a variety of research fields ranging from surface physics, crystallography and material science to condense matter physics. In the recent years, the organic single crystals of technological importance such as scintillator, semiconductor, nonlinear optical (NLO) and laser materials have received greatest attention and have formed the basis of new crystals. The researchers have prompted to search for the newer promising materials. The first chapter contains the introduction of the crystal growth, Bridgman technique, ampoule shape, review of melt growth of organic single crystals and the characterization techniques. The second chapter discusses the construction of single zone transparent modified vertical Bridgman setup, growth of naphthalene and benzil single crystals. The third chapter reveals the growth and characterization of organic material 4-nitrobenzaldehyde single crystal by the modified vertical Bridgman technique using the single wall ampoule with nano translation. The fourth chapter discusses the growth and characterization of organic material 3-hydroxybenzaldehyde (3HBA) single crystal by the modified vertical Bridgman technique using the single and double wall ampoules with the nano translation. The fifth chapter discusses the growth and characterization of the organic material 2-hydroxypyridine single crystal by the modified vertical Bridgman technique using the double wall ampoule with nano translation. The sixth chapter discusses the growth and characterization of the organic materials 2-methylamino-5-chlorobenzophenone (MACB) and 2-hydroxy-4-methoxybenzophenone single crystals by the modified vertical bridgman technique using the single and double wall ampoules with the nano translation. The seventh chapter represents the summary of the present investigation and gives the suggestion for the future work. newline newline newline