Fluorophosphate glass of the xBa(PO3)2 · (90–x)NaPO3 · 10AlF3 system containing CuCl nanocrystals

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• 作者：E. V. Kolobkova ; M. Abdelghany ; M. M. Sychov
• 刊名：Glass Physics and Chemistry
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：42
• 期：2
• 页码：158-163
• 全文大小：281 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Ceramics,Glass,Composites,Natural Materials
  Characterization and Evaluation Materials
  Materials Science
  Physical Chemistry
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1608-313X
• 卷排序：42

文摘

Fluorophosphate glass containing 1.7 mol % of CuCl was synthesized in the xBa(PO₃)₂ · (90–<em class="EmphasisTypeItalic ">x)NaPO₃ · 10AlF₃ system (mol %). The excess chlorine due to the addition of two different amounts of HCl results in a decrease in glass density indicating the introduction of chlorine in the structure and reduction of the degree of connectivity of the glass network. In glass with a high concentration of chlorine, CuCl nanocrystals with dimensions of about 4–4.6 nm are formed during the heat treatment near the glass transition temperature (T_g); this is registered by the appearance and increase of exciton bands corresponding to the Z_1,2 and Z₃ transitions.Keywordsfluorophosphate glassCuCl nanocrystalsexcitonquantum size effect