Nano Archive

Structural and optical properties of CdSe, CdTe and CdSeTe nanoparticles dispersed in SiO2 films

Dayal, P. B and Rao, N. V. R and Mehta, B. R and Shivaprasad, S. M and Paulson, P. D. (2003) Structural and optical properties of CdSe, CdTe and CdSeTe nanoparticles dispersed in SiO2 films. Materials Research Society Symposium - Proceedings , 789 . pp. 3-8.

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Abstract

CdSexTe1-x nanoparticles (with different stoichiometry ratio x) dispersed in silicon dioxide films have been grown by magnetron sputtering technique followed by thermal annealing. Effect of thermal annealing conditions on the structural, compositional, optical and electronic properties of nanoparticles has been studied using GAXRD, XPS, TEM, and spectroscopic ellipsometry techniques. A structural transformation in the nanoparticle core mediated purely by surface layer effects in the case of CdTe and a spontaneous self-organization of nanoparticles into nanorods in the case of CdSe via fractal growth has been observed. Preliminary observations from the ellipsometry measurements carried out on some of these nanoparticle films shows a blue shift of absorption edge.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:5076
Deposited By:JNCASR
Deposited On:27 May 2009 10:15
Last Modified:27 May 2009 10:15

Repository Staff Only: item control page