• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Proceedings vol.2004-13; International Symposium on Nanoscale Devices, Materials, and Biological Systems: Fundamentals and Applications; ; >Encapsulation of Semiconducting Nanoclusters in Amine-Functionalized Ormosils
【24h】

Encapsulation of Semiconducting Nanoclusters in Amine-Functionalized Ormosils

机译：半导体纳米簇在胺官能化的Ormosils中的包封

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Inorganic nanoclusters dispersed in organic matrices are of importance to a number of emerging technologies. However, obtaining useful properties from such organic-inorganic composites often requires high concentrations of well-dispersed nanoclusters. In order to achieve this goal the chemistry of the particle surface and the matrix must be closely matched. This is based on the premise of minimization of the interfacial free energy; an excess of free energy will cause phase separation and ultimately aggregation. Thus, the optimal system is one in which the nanoclusters are stabilized by the same molecules that make up the encapsulant. Yet, the organic matrix is typically chosen for its bulk properties, and therefore may not be amenable to chemical modification. Also, the organic-inorganic interface is often critical to establishing and maintaining the desired nanocluster (and hence composite) properties, placing further constraints on proposed chemical modification. For these reasons we have adopted the use of amine-functionalized trimethoxysilanes (ormosils) as an optical grade encapsulant. In this work, we demonstrate that ormosils can produce beneficial optical effects that are derived from interfacial phenomena, which can be maintained throughout the encapsulation process.
机译：分散在有机基质中的无机纳米簇对许多新兴技术都很重要。但是，从这种有机-无机复合材料获得有用的性能通常需要高浓度的分散良好的纳米团簇。为了达到这个目的，颗粒表面和基质的化学性质必须紧密匹配。这是基于最小化界面自由能的前提。过量的自由能将引起相分离并最终聚集。因此，最佳系统是其中纳米团簇由构成密封剂的相同分子稳定的系统。然而，有机基质通常由于其整体性质而选择，因此可能不适合化学改性。同样，有机-无机界面通常对于建立和保持所需的纳米团簇（进而是复合材料）性能至关重要，这对拟议的化学改性提出了进一步的限制。由于这些原因，我们采用了胺官能化的三甲氧基硅烷（ormosils）作为光学级封装剂。在这项工作中，我们证明了ormosil可以产生有益于界面现象的光学效应，这种现象可以在整个封装过程中保持不变。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号