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Influence on structural and PL property of nanocrystals silicon doped sol gel matrix

M. NAZIRUDDIN KHAN1,* , A. S. AL DWAYYAN2

Affiliation

  1. King Abdullah Institute for Nanotechnology, King Saud University, P.O.Box-2455, Riyadh-11451. Saudi Arabia
  2. Department of Physics and Astronomy, College of Science, King Saud University, Riyadh-11451, Saudi Arabia

Abstract

Photoluminescence and structural property of nanocrystallines silicon (NCs) doped sol gel were studied. The energy band gap of NCs in colloidal form and dried sol gel was determined. Influence on photoluminescence and energy band property of NCs due to the physical of sol gel host was observed. Significant stability on luminescence peak was observed for several weeks at room temperature. Thermal effect on PL intensity and bandwidth of NCs doped sol gel at 1000C are discussed. Morphology revealed that distribution of NCs throughout sol gel solid. The NCs silicon was mono dispersive and high crystalline nature with spherical shape of around 5 to 8nm in sizes..

Keywords

Silicon Nanocrystals, Sol gel process; IR, PL, FESEM, TEM.

Submitted at: Feb. 29, 2012
Accepted at: June 6, 2012

Citation

M. NAZIRUDDIN KHAN, A. S. AL DWAYYAN, Influence on structural and PL property of nanocrystals silicon doped sol gel matrix, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 5-6, pp. 448-454 (2012)