中国物理B ›› 2018, Vol. 27 ›› Issue (5): 54216-054216.doi: 10.1088/1674-1056/27/5/054216

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Structural, vibrational, optical, photoluminescence, thermal, dielectric, and mechanical studies on zinc (tris) thiourea sulfate single crystal: A noticeable effect of organic dye

Mohd Shkir, V Ganesh, S AlFaify, I S Yahia, Mohd Anis   

  1. 1 Advanced Functional Materials & Optoelectronic Laboratory, Department of Physics, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia;
    2 Department of Physics, Sant Gadge Baba Amravati University, Amravati 444602, Maharashtra, India
  • 收稿日期:2017-12-07 修回日期:2018-01-22 出版日期:2018-05-05 发布日期:2018-05-05
  • 通讯作者: Mohd Shkir, S AlFaify E-mail:shkirphysics@gmail.com;sasaalfaify@hotmail.com
  • 基金资助:
    Project supported by the Fund from the Deanship of Scientific Research at King Khalid University,Saudi Arabia (Grant No.R.G.P.2/9/38).

Structural, vibrational, optical, photoluminescence, thermal, dielectric, and mechanical studies on zinc (tris) thiourea sulfate single crystal: A noticeable effect of organic dye

Mohd Shkir1, V Ganesh1, S AlFaify1, I S Yahia1, Mohd Anis2   

  1. 1 Advanced Functional Materials & Optoelectronic Laboratory, Department of Physics, Faculty of Science, King Khalid University, Abha 61413, Saudi Arabia;
    2 Department of Physics, Sant Gadge Baba Amravati University, Amravati 444602, Maharashtra, India
  • Received:2017-12-07 Revised:2018-01-22 Online:2018-05-05 Published:2018-05-05
  • Contact: Mohd Shkir, S AlFaify E-mail:shkirphysics@gmail.com;sasaalfaify@hotmail.com
  • Supported by:
    Project supported by the Fund from the Deanship of Scientific Research at King Khalid University,Saudi Arabia (Grant No.R.G.P.2/9/38).

摘要: In this work, uranine-dyed zinc (tris) thiourea sulfate (ZTS) monocrystals, 26 mm×15 mm×10 mm in size, were synthesized by the solution method at ambient temperature. Their purity, crystallinity, lattice parameters, and functional modes were studied by x-ray diffraction, Fourier transform-infrared spectroscopy (FT-IR), and FT-Raman spectroscopy analyses. The sodium ion content of the crystals from the dye was confirmed by elemental analysis. The diffused reflectance spectral analysis of the dyed crystal revealed a characteristic absorption band at 490 nm attributed to the presence of the dye. The calculated band gaps of the non-dyed and dyed crystals were 4.53 and 4.57 eV, respectively. A green emission peak at ~(512±4) nm was observed in the photoluminescence spectrum of the uranine-dyed crystals. A differential scanning calorimetry study confirmed that the thermal stability improved owing to the addition of the dye. Dielectric and microhardness studies were conducted to examine the significant improvements in the corresponding properties of dyed crystals. The results demonstrated the competency of the dyed ZTS crystals for applications in optoelectronic devices.

关键词: crystal growth, dielectric properties, luminescence, thermal properties, mechanical properties

Abstract: In this work, uranine-dyed zinc (tris) thiourea sulfate (ZTS) monocrystals, 26 mm×15 mm×10 mm in size, were synthesized by the solution method at ambient temperature. Their purity, crystallinity, lattice parameters, and functional modes were studied by x-ray diffraction, Fourier transform-infrared spectroscopy (FT-IR), and FT-Raman spectroscopy analyses. The sodium ion content of the crystals from the dye was confirmed by elemental analysis. The diffused reflectance spectral analysis of the dyed crystal revealed a characteristic absorption band at 490 nm attributed to the presence of the dye. The calculated band gaps of the non-dyed and dyed crystals were 4.53 and 4.57 eV, respectively. A green emission peak at ~(512±4) nm was observed in the photoluminescence spectrum of the uranine-dyed crystals. A differential scanning calorimetry study confirmed that the thermal stability improved owing to the addition of the dye. Dielectric and microhardness studies were conducted to examine the significant improvements in the corresponding properties of dyed crystals. The results demonstrated the competency of the dyed ZTS crystals for applications in optoelectronic devices.

Key words: crystal growth, dielectric properties, luminescence, thermal properties, mechanical properties

中图分类号:  (Nonlinear optical crystals)

  • 42.70.Mp
77.84.-s (Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials) 42.72.Bj (Visible and ultraviolet sources) 74.25.Jb (Electronic structure (photoemission, etc.))