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Optical properties of MgxZn1-xO nanoparticles synthesized by a direct thermal decomposition route

S. LABUAYAI1, V. PROMARAK2, S. MAENSIRI1,*

Affiliation

  1. Integrated Nanotechnology Research Center (INRC), Faculty of Science, Khon Kaen University, Khon Kaen, 40002, Thailand
  2. Advanced Organic Materials and Devices Laboratory, Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Varinchamrap, Ubon Ratchathani 34190, Thailand

Abstract

MgxZn1-xO (0 ≤ x ≤ 0.4) nanoparticles were synthesized by direct thermal decomposition of Zn and Mg acetates in air at 500 ºC. As revealed by SEM, pure ZnO sample consisted of nanorods, wheras MgxZn1-xO samples became nanoparticles. The Eg increased from 3.13 to 3.22 eV with increasing Mg concentration. The PL spectra of all the samples showed a strong UV emission, a weak blue, a weak blue-green, and a weak green bands, indicating their high structure and optical quality.

Keywords

Nanoparticles, Zinc oxides, Semiconductors, Thermal decomposition, Optical properties, Photoluminescence.

Citation

S. LABUAYAI, V. PROMARAK, S. MAENSIRI, Optical properties of MgxZn1-xO nanoparticles synthesized by a direct thermal decomposition route, Optoelectronics and Advanced Materials - Rapid Communications, 2, 12, December 2008, pp.798-801 (2008).

Submitted at: Nov. 8, 2008

Accepted at: Dec. 4, 2008