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相关概念视频

Insensitive Nuclei Enhanced by Polarization Transfer (INEPT)01:15

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Insensitive Nuclei Enhanced by Polarization Transfer (INEPT) is an advanced Nuclear Magnetic Resonance (NMR) technique specifically designed to detect and enhance the signals of low-abundance nuclei, such as carbon-13 and nitrogen-15, in small molecules. The fundamental principle behind INEPT is the transfer of polarization from a more abundant and highly polarizable nucleus, typically hydrogen-1, to the low-abundance nucleus of interest. This process effectively boosts the NMR signal of the...
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Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
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相关实验视频

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Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
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三进制补偿使NIR可视化的高灵敏高效的上转换装置成为可能.

Shilong Dong1, Jin Li1, Tianjiao Ma1

  • 1School of Chemistry & Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory for Metal Matrix Composite Materials, Shanghai Jiao Tong University, Shanghai, 200240, China.

Advanced materials (Deerfield Beach, Fla.)
|December 6, 2024
PubMed
概括

有机上转换设备为近红外可视化提供了一个有希望的替代方案. 这项研究介绍了一种具有提高效率的高灵敏度设备,以及用于先进的红外成像应用的大型,轻型,半透明的设计.

关键词:
在NIR光照检测中使用NIR光照检测.在NIR可视化中使用NIR可视化.有机上转换装置 有机上转换装置三元补偿是三元的补偿.可穿戴性可穿戴性

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科学领域:

  • 有机电子学有机电子学
  • 光电学是指光电子产品.
  • 材料科学是一种材料科学.

背景情况:

  • 用于红外可视化的晶体光二极管面临着不透明性和复杂制造等局限性.
  • 有机上转换装置 (UCD) 为红外成像提供了可行的替代方案.

研究的目的:

  • 开发一种高灵敏度的有机上转换装置,用于近红外 (NIR) 可视化.
  • 提高检测性能,减少UCD中的暗电流.
  • 创建一个大面积,轻量级和半透明的UCD.

主要方法:

  • 在非富勒基活性层中实施三元补偿策略.
  • 通过更换半透明矩阵电极,制造一个大面积的UCD.
  • 对上转换效率,暗电流,响应时间和光学属性的表征.

主要成果:

  • 在980nm NIR光线下,实现了16.68%的红外到可见光高转换效率.
  • 展示了一个大面积 (12.25厘米2) 的UCD,具有微秒响应时间.
  • 制造了一种轻量级 (6.5g),半透明 (AVT ≈40%),无像素 (1270 ppi) 的设备.

结论:

  • 开发的UCD提供了高度灵敏和高效的NIR可视化.
  • 该设备的特性使其在赤外线裸眼可视化和红外反监视方面的应用成为可能.
  • 这项工作通过有机电子技术推进了红外可视化技术.