Investigation on rapid growth of 4-N,N-dimethylamino-4′-N′-methylstilbazolium p-toluenesulphonate (DAST) crystals by SNM technique

被引：29
|
作者：
Vijay, R. Jerald [1 ]
Melikechi, N. [2 ]
Kumar, T. Rajesh [1 ]
Jesudurai, Joe G. M. [1 ]
Sagayaraj, P. [1 ]
机构：
[1] Loyola Coll, Dept Phys, Madras, Tamil Nadu, India
[2] Delaware State Univ, Ctr Res & Educ Opt Sci & Applicat, Dept Phys Preengn, Dover, DE 19901 USA
来源：
JOURNAL OF CRYSTAL GROWTH | 2010年 / 312卷 / 03期
基金：
美国国家科学基金会;
关键词：
Surface structure; Growth from solutions; Nonlinear optical materials; Terahertz technology; NONLINEAR-OPTICAL CRYSTAL; TERAHERTZ RADIATION; STILBAZOLIUM-SALT; SINGLE-CRYSTALS; GENERATION; RECTIFICATION;
D O I：
10.1016/j.jcrysgro.2009.10.067
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
We have investigated the rapid growth of N,N-dimethylamino-N'-methylstilbazolium p-toluenesulphonate (DAST) adopting the slope nucleation method and by rapidly evaporating the solvent. Thin plates of DAST are grown within a period of 72 h by carefully optimizing the growth conditions. The structural and optical properties of the crystal are studied by employing powder XRD, FTIR and NMR. The electrical properties of the crystal are investigated by ac, dc and photoconductivity measurements. The surface features and the influence of rapid evaporation of the DAST crystal have been analyzed using scanning electron microscopy. The results suggest that the quality of the crystal grown by this method compares well with those grown by conventional techniques. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：420 / 425
页数：6
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