Physics – Condensed Matter – Materials Science
Scientific paper
2011-01-21
Physics
Condensed Matter
Materials Science
9 figures
Scientific paper
As grown ZnO:Si nanocomposites of different compositional ratios were fabricated by thermal evaporation techniques. These films were subjected to post deposition annealing under high vacuum at a temperature of $\rm 250C^o$ for 90min. The photoluminescence (PL) spectra of annealed samples have shown marked improvements both in terms of intensity and broadening. For the first time in ZnO:Si nanocomposite films we see huge UV, red and orange peaks at 310, 570 and 640nm. Structural and Raman analysis show formation of a Zn-Si-O shell around ZnO nano clusters wherein on heating $\rm Zn_2SiO_4$ compound forms. The new emissions are due to $\rm Zn_2SiO_4$ which completes white light spectrum.
Arun P.
Kant Chhaya Ravi
Shabnam
No associations
LandOfFree
White-Light Emission from Annealed ZnO:Si Nanocomposite Thin Films does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with White-Light Emission from Annealed ZnO:Si Nanocomposite Thin Films, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and White-Light Emission from Annealed ZnO:Si Nanocomposite Thin Films will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-19047