Analysis of PV deposited ZnTe thin films through Urbach tail and photoluminescence spectroscopy

Rashmitha Keshav, Meghavarsha Padiyar, N. Meghana, M. G. Mahesha

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

ZnTe thin films have been grown by thermal evaporation on glass substrates at room temperature at a residual pressure about 10−6 Torr and characterized for their structural and optical properties. Crystallite size and strain have been estimated from X-ray diffractogram by William – Hall method. Urbach tail, which originates near band edge due to structural disorder, has been evaluated along with optical bad gap from the absorbance spectra. Photoluminescence spectra has been recorded to get information on various excited levels. Correlation between optical absorbance and photoluminescence spectra has been established with Roosbroeck–Shockley relation. Finally effect of annealing on structural and optical properties along with photoluminescence spectra has been studied in detail.

Original languageEnglish
Pages (from-to)257-263
Number of pages7
JournalJournal of Luminescence
Volume194
DOIs
Publication statusPublished - 01-02-2018

Fingerprint

Photoluminescence spectroscopy
Glass
Spectrum Analysis
Photoluminescence
Hot Temperature
X-Rays
photoluminescence
Pressure
Thin films
Temperature
Structural properties
thin films
Optical properties
Optical correlation
spectroscopy
Thermal evaporation
Crystallite size
optical properties
Annealing
X rays

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Biochemistry
  • Condensed Matter Physics

Cite this

Keshav, Rashmitha ; Padiyar, Meghavarsha ; Meghana, N. ; Mahesha, M. G. / Analysis of PV deposited ZnTe thin films through Urbach tail and photoluminescence spectroscopy. In: Journal of Luminescence. 2018 ; Vol. 194. pp. 257-263.
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Analysis of PV deposited ZnTe thin films through Urbach tail and photoluminescence spectroscopy. / Keshav, Rashmitha; Padiyar, Meghavarsha; Meghana, N.; Mahesha, M. G.

In: Journal of Luminescence, Vol. 194, 01.02.2018, p. 257-263.

Research output: Contribution to journalArticle

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