GROWTH OF 4-(4-DIMETHYLAMINOSTYRYL)-1-METHYLPYRIDINIUM TOSYLATE (DAST) MIXED SINGLE CRYSTAL BY BRIDGMAN–STOCKBARGER METHOD
2004
4-(4-dimethylaminostyryl)-1-methylpyridinium tosylate (DAST) is a very promising organic nonlinear optical (NLO) material for future optoelectronic and nonlinear optical applications, though it cannot be grown from molten state. Hence, a derivative of DAST was synthesized and mixed with DAST. The melting point of the mixed crystal decreased drastically, making it possible to grow a single crystal from molten state. In the present investigation, a mixed single crystal of DAST has been grown from molten state by vertical Bridgman–Stockbarger method.
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