Analysis on Dielectric, Thermal, and Mechanical Characteristics of Nickel Boro Phthalate NLO Crystal for Optoelectronic Applications,Crystal Research and Technology

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Analysis on Dielectric, Thermal, and Mechanical Characteristics of Nickel Boro Phthalate NLO Crystal for Optoelectronic Applications
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2021-06-19 , DOI: 10.1002/crat.202000247
M. Divya ₁ , P. Malliga ₁ , P. Sagayaraj ₂ , A. Joseph Arul Pragasam ₁

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Dielectric, thermal, and mechanical behavior of an efficient nonlinear crystal, nickel boro phthalate (NBP), grown by a slow evaporation solution growth technique, is characterized for optoelectronic applications. Ultraviolet absorption study identifies the lower cutoff wavelength as 281 nm. This low value along with transparency in the visible and infrared regions establishes that NBP is a probable nonlinear material. The frequency and the temperature dependency of dielectric constant and dielectric loss are probed. AC conductivity and activation energy are computed, to examine the semiconducting ability of the crystal. Thermal gravimetric analysis and differential thermal analysis are carried out to determine the decomposition temperature. Mechanical characterization is performed by the Vickers microhardness test. The study reveals that NBP comes under the category of soft material. Mechanical properties such as the elastic stiffness constant, brittleness index, yield strength, and fracture toughness are explored.

中文翻译：

用于光电应用的邻苯二甲酸硼镍 NLO 晶体的介电、热和机械特性分析

通过缓慢蒸发溶液生长技术生长的高效非线性晶体、邻苯二甲酸镍硼 (NBP) 的介电、热和机械性能具有光电应用的特点。紫外吸收研究确定下截止波长为 281 nm。这种低值以及可见光和红外区域的透明度表明 NBP 可能是一种非线性材料。探讨了介电常数和介电损耗的频率和温度依赖性。计算交流电导率和活化能，以检查晶体的半导体能力。进行热重分析和差热分析以确定分解温度。通过维氏显微硬度测试进行机械表征。研究表明，NBP 属于软材料类别。研究了弹性刚度常数、脆性指数、屈服强度和断裂韧性等机械性能。

更新日期：2021-06-19

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