首页> 外文期刊>Materials Science and Engineering >SERS substrates of doped germanium nanowires decorated with silver nanoparticles
【24h】

SERS substrates of doped germanium nanowires decorated with silver nanoparticles

机译:银纳米粒子修饰的掺杂锗纳米线的SERS衬底

获取原文
获取原文并翻译 | 示例
           

摘要

The microstructure and SERS activity of Ag-decorated Ge nanowires (NWs) doped with boron (B) or phosphorous (P) were investigated. The silver nanoparticles (AgNPs) distribution observed for the both types of doped nanowires differed significantly, as well as before and after the annealing procedures. The deposited strong-packed nonspherical Ag nanoparticles favor the Raman surface enhancement compared to spherical nanoparticles distributed along the nanowires with a larger interparticle distances after annealing. The SERS activity of the 3D nanocomposites is also influenced by the initial shape and the diameter of the nanowires and by the surface effects. The strongest SERS signal of Rhodamine 6G (R6G) was registered for the sample doped with P before annealing. Unlike the 2D AgNPs array the thermal annealing at 300 ℃ for 1 h destroyed the Raman activity of the B-doped composites and reduced the Raman peak intensities of the P-doped one.
机译:研究了掺硼(B)或磷(P)的Ag修饰Ge纳米线(NWs)的微观结构和SERS活性。两种类型的掺杂纳米线的观察到的银纳米颗粒(AgNPs)分布以及退火程序之前和之后均显着不同。与沿着纳米线分布的球形纳米颗粒相比,退火后沉积的强堆积非球形Ag纳米颗粒有利于拉曼表面增强。 3D纳米复合材料的SERS活性也受纳米线的初始形状和直径以及表面效应的影响。罗丹明6G(R6G)的最强SERS信号在退火之前记录了掺杂P的样品。与2D AgNPs阵列不同,在300℃下热退火1 h破坏了B掺杂复合材料的拉曼活性,并降低了P掺杂复合材料的拉曼峰强度。

著录项

  • 来源
    《Materials Science and Engineering》 |2014年第9期|102-107|共6页
  • 作者

    M.E. Koleva; M. Dutta; N. Fukata;

  • 作者单位

    International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1 - 1 Namiki, Tsukuba 305-0044, Japan,Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Chaussee blvd., Sofia 1784, Bulgaria;

    International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1 - 1 Namiki, Tsukuba 305-0044, Japan;

    International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1 - 1 Namiki, Tsukuba 305-0044, Japan;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Nanocomposites; Silver nanoparticles; Semiconductor nanowires; SERS;

    机译:纳米复合材料;银纳米颗粒;半导体纳米线;SERS;

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