Effect of oxalic acid on the optical, thermal, dielectric and mechanical behaviour of ADP crystals

被引：52

作者：

Rajesh, P. ^{[1
]}

Ramasamy, P. ^{[1
]}

机构：

[1] SSN Coll Engn, Ctr Crystal Growth, Kalavakkam 603110, India

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 8-11期

关键词：

Crystal growth; Growth from solution; Mechanical properties; Optical properties; Dielectrics; SHG efficiency; SINGLE-CRYSTALS; DIHYDROGEN PHOSPHATE; L-HISTIDINE; KDP; GROWTH; GENERATION; MORPHOLOGY;

D O I：

10.1016/j.physb.2009.01.032

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The effect of the addition, over a concentration range from 1 to 5 mol%, of oxalic acid on the growth rate, optical transparency, hardness, dielectric behaviour, and SHG efficiency of ammonium dihydrogen phosphate single crystals grown by slow evaporation method has been investigated. UV-Vis studies show that the transparency of the oxalic acid added crystals decreased gradually. Thermal studies indicate that the decomposition temperatures of the crystal are decreased in oxalic acid added ADP crystals. It is observed from the dielectric measurements that the dielectric constant and dielectric loss increase with increase in temperature for all the crystals. Vicker's microhardness study reveals that the addition of higher concentration of oxalic acid decreases the hardness of the crystal. SHG efficiency of 1 mol% of oxalic acid is higher than the pure ADP. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1611 / 1616

页数：6

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