...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Crystal Growth >Optical properties of BNT thin films grown on Pt/Ti/SiO2/Si(100) substrates by a CSD processing
【24h】

Optical properties of BNT thin films grown on Pt/Ti/SiO2/Si(100) substrates by a CSD processing

机译：通过CSD处理在Pt / Ti / SiO2 / Si（100）衬底上生长的BNT薄膜的光学特性

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

Amorphous and crystalline Bi3.5Nd0.5Ti3O12 (BNT) thin films were deposited on Pt/Ti/SiO2/Si(100) substrates by a CSD processing. The optical parameters of BNT films were obtained by spectroscopic ellipsometry using the combination of a multilayer model and Bruggeman effective medium approximation. The dispersion of refractive index was analyzed by the Sellmeier oscillator model. The oscillator energy E-m and the dispersion energy E-d were calculated according to Wemple-Didomenico formula. Urbach absorption was found in both the amorphous and crystalline BNT films, which were different from the usual absorption in perovskite films. The mechanism of the Urbach absorption was ascribed to the substitution of neodymium for bismuth. The possible effect of Bi shortage in the crystalline film is also discussed. (C) 2004 Elsevier B.V. All rights reserved.
机译：通过CSD处理将非晶和结晶的Bi3.5Nd0.5Ti3O12（BNT）薄膜沉积在Pt / Ti / SiO2 / Si（100）衬底上。 BNT薄膜的光学参数是通过使用多层模型和Bruggeman有效介质近似的组合，通过椭圆偏振光谱法获得的。通过Sellmeier振荡器模型分析了折射率的色散。根据Wemple-Didomenico公式计算振荡器能量E-m和色散能量E-d。在无定形和结晶BNT膜中均发现Urbach吸收，这与钙钛矿膜中的通常吸收不同。 Urbach吸收的机理归因于钕替代铋。还讨论了Bi缺乏对晶体膜的可能影响。 （C）2004 Elsevier B.V.保留所有权利。

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