A study of formation and photoluminescence properties of ZnO quantum dot doped zinc-alumino-silicate glass ceramic

详细信息    查看全文

• 作者：Bahram Ghaemi^a ; Gaoling Zhao ; ^a ; ^{glzhao@zju.edu.cn} ; Guangtao Jie^a ; Haidong Xi^a ; Xiuming Li^a ; Jianxun Wang^a ; Gaorong Han^a
• 关键词：Glass-Ceramic ; ZnO Quantum Dots ; Photoluminescence
• 刊名：Optical Materials
• 出版年：2011
• 出版时间：April 2011
• 年：2011
• 卷：33
• 期：6
• 页码：827-830
• 全文大小：685 K

文摘

Transparent Al₂O₃–SiO₂–ZnO–R₂O glass ceramics were fabricated by melting method. The effects of the different kind of alkali ions on the formation of the transparent glass ceramic were studied. X-ray diffraction and high resolution transmission electron microscope were measured to study the microstructure of the samples. The results showed that, transparent glass ceramic including ZnO quantum dots was obtained after heat treatment from 700 °C to 800 °C for the sample containing K₂O. While glasses containing Li₂O and Na₂O were opal after heat treatment. Photoluminescence properties of the K₂O contained samples were studied. It was found that the photoluminescence peak shifted to longer wavelength when the heat treatment temperature and time increased, which can be ascribed to the increasing of ZnO quantum dots size.