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Investigations on synthesis, growth and physical characterization of lithium selenoindate single crystals

机译：硒酸锂单晶的合成，生长和物理表征研究

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摘要

Crack free LiInSe_2 single crystal with bottom dimension of 8 mm diameter and 10 mm length and top dimension of 12 mm diameter and 22 mm length was grown using modified vertical Bridgman-Stockbarger method with steady ampoule rotation. The grown LiInSe_2 crystal was characterized by X-ray diffraction pattern, Rutherford backscattering spectroscopy (RBS) analysis, Thermogravimetric-Differential thermal (TG-DTA) analysis, optical transmission and microhardness measurements. X-ray diffraction pattern gives the orientation of the crystal as <002>. RBS analysis confirms that the composition of the grown crystal is Li_(0.8)In_(1.16)Se_(2.04). TG-DTA analysis confirms that the melting point of the grown crystal is 897.5℃ Optical behavior has been assessed by ultraviolet-visible-near infrared spectroscopy and Fourier transform infrared analysis. LiInSe_2 optical band gap energy is 2.72 eV and the cut off wavelength is 450 nm. Mechanical behavior has been studied using Vickers Microhardness measurements.
机译：使用改进的垂直Bridgman-Stockbarger方法在稳定安瓿旋转的情况下生长底部尺寸为8 mm直径和10 mm长，顶部尺寸为12 mm直径和22 mm的无裂纹LiInSe_2单晶。通过X射线衍射图，卢瑟福背散射光谱（RBS）分析，热重差热分析（​​TG-DTA），光学透射率和显微硬度测量来表征生长的LiInSe_2晶体。 X射线衍射图给出晶体的取向为<002>。 RBS分析证实生长的晶体的组成为Li_（0.8）In_（1.16）Se_（2.04）。 TG-DTA分析证实生长的晶体的熔点为897.5℃。通过紫外-可见-近红外光谱和傅里叶变换红外分析评估了光学行为。 LiInSe_2光带隙能量为2.72 eV，截止波长为450 nm。机械性能已使用维氏显微硬度测量进行了研究。

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  • 来源
    《Journal of Crystal Growth》 |2014年第1期|205-209|共5页
  • 作者

    P. Vijayakumar; M. Magesh; A. Arunkumar; G. Anandha Babu; P. Ramasamy; K.G.M. Nair;

  • 作者单位

    Centre for Crystal Growth, SSN College of Engineering, Kalavakkam 603110, Tamilnadu, India;

    Centre for Crystal Growth, SSN College of Engineering, Kalavakkam 603110, Tamilnadu, India;

    Centre for Crystal Growth, SSN College of Engineering, Kalavakkam 603110, Tamilnadu, India;

    Centre for Crystal Growth, SSN College of Engineering, Kalavakkam 603110, Tamilnadu, India;

    Centre for Crystal Growth, SSN College of Engineering, Kalavakkam 603110, Tamilnadu, India;

    Materials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamilnadu, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A1. Characterization; A1. Solidification; A2. Bridgman technique; B1. Lithium compounds; B2. Semiconducting ternary compounds;

    机译：A1。表征;A1。凝固;A2。布里奇曼技术;B1。锂化合物;B2。半导体三元化合物;

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