Phase Transformation and Optical Properties of Annealed Hydrothermally Synthesized ZnO/ZnCr2O4 Nanocomposites

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• 作者：Ashish Kumar ; Tejendra Dixit ; Iyamperumal A. Palani ; Pankaj R. Sagdeo and Vipul Singh
• 刊名：International Journal of Applied Ceramic Technology
• 出版年：2016
• 出版时间：September/October 2016
• 年：2016
• 卷：13
• 期：5
• 页码：912-919
• 全文大小：881K
• ISSN：1744-7402

文摘

The effect of postgrowth thermal annealing on ZnO/ZnCr₂O₄ nanocomposites synthesized by hydrothermal method has been thoroughly investigated. XRD data have clearly revealed the transformation of spinel cubic phase of ZnCr₂O₄ to wurtzite phase ZnO and indicated the incorporation of Cr in ZnO lattice with annealing at high temperatures. Photoluminescence spectra have shown a strong dependence of emission on annealing temperatures. This work demonstrated the unique and simple route to fabricate Cr-doped ZnO and tuning of the luminescence with annealing temperature. Thus, the work has immense potential for optoelectronic and photovoltaic applications.