首页> 外文期刊>Nanotechnology >The structural and optical properties of SiO2/Si rich SiNx multilayers containing Si-ncs
【24h】

The structural and optical properties of SiO2/Si rich SiNx multilayers containing Si-ncs

机译:含Si-ncs的SiO2 / Si富SiNx多层膜的结构和光学性质

获取原文
获取原文并翻译 | 示例
           

摘要

This work reports on the structural and optical properties of multilayers composed of silicon dioxDEe (SiO2) and silicon rich silicon nitrDEe ( SRN) films. These nanometer scale layers have been alternately deposited by electron cyclotron resonance plasma enhanced chemical vapor deposition (ECR-PECVD) on quartz and silicon ( Si) substrates. The samples have then been annealed at high temperature in order to obtain a crystallization of the Si atoms present in excess in the SRN films. The formation of crystalline Si has been witnessed by high resolution transmission electron microscopy (HREM) and mu-Raman measurements. Estimation of the Si-nanocrystal (Si-nc) sizes was possible by correlating the Raman's confinement model, the photoluminescence measurements and HREM imaging. The results clearly show that the band-gap of the Si-ncs formed can be controlled by this multilayer approach.
机译:这项工作报告了由二氧化硅(SiO2)和富硅氮化硅(SRN)膜组成的多层的结构和光学性质。这些纳米级层已经通过电子回旋共振等离子体增强化学气相沉积(ECR-PECVD)交替沉积在石英和硅(Si)基板上。然后将样品在高温下退火,以获得SRN膜中过量存在的Si原子的结晶。高分辨率透射电子显微镜(HREM)和mu-Raman测量已见证了晶体硅的形成。通过关联拉曼约束模型,光致发光测量值和HREM成像,可以估计Si纳米晶体(Si-nc)的大小。结果清楚地表明,可以通过这种多层方法来控制形成的Si-ncs的带隙。

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