Growth and properties of sodium tetraborate decahydrate single crystals

被引：63

作者：

Goel, Neeti ^{[1
]}

Sinha, Nidhi ^{[2
]}

Kumar, Binay ^{[1
]}

机构：

[1] Univ Delhi, Dept Phys & Astrophys, Crystal Lab, Delhi 7, India

[2] Univ Delhi, Dept Elect, Sgtb Khalsa Coll, Delhi 7, India

来源：

MATERIALS RESEARCH BULLETIN | 2013年 / 48卷 / 04期

关键词：

Inorganic compounds; Crystal growth; X-ray diffraction; Dielectric properties; Optical properties; NONLINEAR-OPTICAL PROPERTIES; FREQUENCY-CONVERSION; AC CONDUCTIVITY; BEHAVIOR; CHEMISTRY;

D O I：

10.1016/j.materresbull.2013.01.007

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Sodium tetraborate decahydrate (Na2B4O7 center dot 10H(2)O) single crystals were grown from aqueous solution by slow solvent evaporation method and its functional groups have been confirmed by FTIR. Grown crystals were found to be hard in nature (n = 1.8). From optical studies band gap of the material was found to be 4.1 eV and PL emission peak was found at 340 nm which can be due to annihilation self trapped excitons present in borate crystals. Dielectric constant was found to increase with temperature up to 70 degrees C. Conductivity obeys Jonscher's power law as seen at different temperatures. Activation energy of the crystal was found to be 2.05 eV. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1632 / 1636

页数：5

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