Growth and defects of DAST crystal in high concentration solution

被引：16

作者：

Cao, Lifeng ^{[1
,2
]}

Teng, Bing ^{[1
,2
]}

Feng, Ke ^{[1
,2
]}

Zhong, Degao ^{[1
,2
]}

Hao, Lun ^{[1
,2
]}

Sun, Qing ^{[1
,2
]}

机构：

[1] Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China

[2] Qingdao Univ, Shandong Univ, Key Lab Photon Mat & Technol, Qingdao 266071, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2015年 / 412卷

基金：

中国国家自然科学基金;

关键词：

Atomic force microscopy; Defects; Single crystal growth; Organic compounds; NUCLEATION;

D O I：

10.1016/j.jcrysgro.2014.11.026

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The 4-N,N-dimelhylamino4-N-methyl slilbazoliurn Losylare (DAST) crystal with large size and nearly square shape was grown in high concentration solution by slope nucleation method coupled slow cooling (SW-SC). Striations considered as planar defects were found on the (001) face along a-axis in the crystal by optical microscope. Some of the striations were continuous while some of them were discontinuous. In addition, the striations were found on (231) diffracting face and such lines did not occur on the (3-21) and (-221) planes. The surface distribution and morphological structure of the crystal were characterized by XRD and atomic force microscope (AFM). The presence of striations in the sample was also confirmed by white-beam synchrotron radiation topography (WBSRT). The mechanism of striations formation was also discussed. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：20 / 24

页数：5

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