MORPHOLOGICAL STABILITY AND ENHANCED PHOTOLUMINESCENCE CHARACTERISTICS OF La3+ DOPED SrS THIN FILMS

  • Shubhra Mishra, D. S. Kshatri, Vikas Dubey, Arti Verma
Keywords: Thin films; deposition; Optical materials; luminescence

Abstract

The SrS nanophosphors doped with varying concentrations viz. 0.5, 1.0, 1.5 and 2 mol % of La3+ were prepared by conventional solid state diffusion method (SSDM). As synthesized nanophosphors were then deposited into thin films on glass substrates by electron-beam evaporation deposition (EBED) technique. The X-ray diffractograms (XRD) are used to get information about crystalline nature of thin films while field emission scanning electron microscopy (FESEM) studies disclose and describe the film surface morphology and process of particle agglomeration. The atomic force microscopy (AFM) images confirmed that the surface unevenness and cubical grain size of SrS is because of increased concentration of La3+. The prepared thin films optical properties were studied in terms of photoluminescence (PL) emission and excitation spectra, the observed two peaks of emission spectra at 447 nm and at 466 nm attributed to enhanced optical phenomenon.

Published
2021-09-26
How to Cite
Arti Verma, S. M. D. S. K. V. D. (2021). MORPHOLOGICAL STABILITY AND ENHANCED PHOTOLUMINESCENCE CHARACTERISTICS OF La3+ DOPED SrS THIN FILMS. Design Engineering, 14603-14614. Retrieved from http://www.thedesignengineering.com/index.php/DE/article/view/4746
Section
Articles