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超化Si纳米层:激光加工技术和相应的材料特性

Michael Kovalev1,2, Alena Nastulyavichus1, Ivan Podlesnykh1,3

  • 1Lebedev Physical Institute, 119991 Moscow, Russia.

Materials (Basel, Switzerland)
|June 28, 2023
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概括

黄金过度化显示了近红外光吸收的潜力,但最佳效率仍然难以捉摸. 需要对基于激光的超兴奋剂技术进行进一步的研究,以提高光探测器的性能.

关键词:
红外光谱法 红外光谱法拉曼显微光谱法 拉曼显微光谱法在X射线光电子显微光谱学中使用X射线光电子显微光谱.无形Si薄膜是一种无形的Si薄膜.能量分散式X射线显微光谱学黄金的杂质 黄金的杂质激光过度兴奋剂激光过度兴奋剂

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科学领域:

  • 材料科学 材料科学 材料科学
  • 光电学是指光电子产品.
  • 纳米技术纳米技术

背景情况:

  • 基于的光电探测器对于近红外 (NIR) 光检测至关重要.
  • 目前的NIR光探测器的效率很低.
  • 金 (Au) 超兴奋剂是一种潜在的途径,可以增强的NIR吸收.

研究的目的:

  • 为了调查基于激光的与黄金的超兴奋剂.
  • 为了比较分析不同的激光超兴奋剂疗法.
  • 评估Au-hyperdoped Si对改进的NIR光探测器的潜力.

主要方法:

  • 薄无形薄膜使用纳米秒和皮秒激光与黄金进行过度合.
  • 使用能量分散X射线光谱 (EDX) 进行了组合分析.
  • 化学,结构和IR光谱表征采用X射线光电子光谱 (XPS),拉曼光谱和IR光谱.

主要成果:

  • 展示了几种有前途的激光基超兴奋剂与黄金的方案.
  • 描述过度化的组成,化学,结构和光学特性.
  • 通过Au-hyperdoped Si.观察近红外区域的光吸收.

结论:

  • 基于激光的超兴奋剂提供了增强NIR光学性能的途径.
  • 对于杂质过度化材料的最佳效率尚未达到.
  • 为了实现高效的NIR光探测器,需要进一步优化激光超兴奋剂过程.