Optical and structural properties of tenorite nanopowders doped by Si and Zr

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• 作者：Nasrollah Najibi Ilkhechi (1)
  Behzad Koozegar-Kaleji (1)
  Fallah Dousi (2)
  
  1. Department of Materials Engineering ; Faculty of Engineering ; Malayer University ; P.O.Box 65719-95863 ; Malayer ; Iran
  2. Department of Physics ; Faculty of Science ; Malayer University ; Malayer ; Iran
  
• 关键词：CuO nanopowders ; Band gap energy ; Si and Zr dopant
• 刊名：Optical and Quantum Electronics
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：47
• 期：3
• 页码：633-642
• 全文大小：1,026 KB
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• 刊物主题：Optics, Optoelectronics, Plasmonics and Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
• 出版者：Springer US
• ISSN：1572-817X

文摘

In this study preparation of Si and Zr doped CuO nanopowders have been investigated. The effects of Si and Zr doping and heat treatment temperature on the structural and optical properties of Nanopowders have been studied by X-ray diffraction (XRD), Scanning electron microscopy (SEM-EDX), UV-Vis absorption and FTIR spectroscopy. Nanopowders were obtained by sol gel method under room conditions (temperature, 25鈥?2聽 \(^{\circ }\mathrm{C}\) ) and were subsequently calcined at different temperatures (400鈥?00聽 \(^{\circ }\mathrm{C}\) ). XRD results suggest that adding impurities has a significant effect on the crystallinity, and particle size of CuO. The patterns showed that CuO nanopowders calcined at different temperature were Tenorite structure. The optical absorption spectrum indicates that the CuO nanoparticles have a direct band gap of 1.78聽eV. But optical band gap of the doped CuO (15聽% Si and 15聽% Zr) was found to be 3.75鈥?.95聽eV.