کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7223062 | 1470556 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of ZnO nanoparticles doping on the optical properties of TiS2 discs
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
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چکیده انگلیسی
As-synthesized sample of TiS2 discs and ZnO doped TiS2 discs have been prepared by solid-state reaction method. XRD studies confirm that the polycrystalline nature of as-synthesized discs. The doping of ZnO nanoparticles in TiS2 discs has been verified by the XRD spectra. UV-vis studies reveal a direct band-gap and its value increases after the doping of ZnO nanoparticles in TiS2 discs. The evaluated value of optical band gap (Eg) of TiS2 discs is 2.01â¯eV and after the doping of ZnO nanoparticles its values increases from 2.07â¯eV to 2.31â¯eV. PL emission spectra of as-prepared TiS2 discs and ZnO nanoparticles doped TiS2 discs have been studied at room temperature for the wavelength range of (300-550) nm. PL emission spectra suggest the blue shift, which decreases after increasing concentration of ZnO nanoparticles in TiS2 discs. Optical constants such as refractive index (n) & extinction (k) coefficient have been evaluated. The value of k of TiS2 discs & ZnO nanoparticles doped TiS2 discs increases while the value of n decreases with increase in photon energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 171, October 2018, Pages 183-189
Journal: Optik - Volume 171, October 2018, Pages 183-189
نویسندگان
M. Parvaz, Numan A. Salah, Zishan H. Khan,