Scholarlink

<p>Electron microscopy is an essential tool in the fabrication and characterization of optoelectronic devices. This study systematically investigated the stability of zinc oxide nanowires under electron irradiation, focusing on spontaneous and stimulated emission as well as their waveguiding properties. Spontaneous emission initially increases, which we attribute to the desorption of surface species, leading to a reduced surface band bending and enhanced luminescence. However, continued electron irradiation results in hydrocarbon formation on the nanowire surface, increasing waveguiding losses. These increased optical losses, in turn, raise the lasing threshold of nanowire lasers. Our findings offer valuable insights into the electron imaging parameters for optimizing semiconductor nanowires in optoelectronic applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhancement and quenching of ZnO nanowire luminescence by electron irradiation

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月12日

查看全文
  • Edwin Eobaldt,
  • Maximilian Zapf,
  • Gesine Wolf,
  • Sam Imani,
  • Johannes Nicklaus,
  • Sven Schönherr,
  • Carsten Ronning

摘要

Electron microscopy is an essential tool in the fabrication and characterization of optoelectronic devices. This study systematically investigated the stability of zinc oxide nanowires under electron irradiation, focusing on spontaneous and stimulated emission as well as their waveguiding properties. Spontaneous emission initially increases, which we attribute to the desorption of surface species, leading to a reduced surface band bending and enhanced luminescence. However, continued electron irradiation results in hydrocarbon formation on the nanowire surface, increasing waveguiding losses. These increased optical losses, in turn, raise the lasing threshold of nanowire lasers. Our findings offer valuable insights into the electron imaging parameters for optimizing semiconductor nanowires in optoelectronic applications.