论文标题
红外窄带间隙纳米晶体：最新进展相对于成像和主动检测
Infrared narrow band gap nanocrystals: recent progresses relative to imaging and active detection
论文作者
论文摘要
当前用于红外检测的技术是基于外延生长的半导体的。在这里，我们回顾了有关胶体纳米晶体的一些最新发展及其用作低成本红外传感器设计的基础。我们专注于HGTE纳米晶体，该纳米晶体是导致红外光电传统和超大型光谱可调性的唯一材料：从可见的到长波红外。我们回顾了一些重要的结果，这些结果表明胶体纳米晶体可以与空气稳定的操作，快速检测和强吸收兼容。我们讨论了最新的相对于多元素设备的进展，并通过将短波红外纳米颗粒与CMOS电路耦合以实现视频速率VGA格式成像获得的结果。特别是我们表明，纳米晶体是连续波和脉冲模式下远距离（> 150 m）主动检测的有前途的材料，时间分辨率低至10 ns。
Current technologies for infrared detection have been based on epitaxially grown semiconductors. Here we review some of the recent developments relative to colloidal nanocrystals and their use as building blocks for the design of low-cost infrared sensors. We focus on HgTe nanocrystals which appear as the only material leading to infrared photoconductivity and ultra-broad spectral tunability: from the visible to the long-wave infrared. We review some of the important results which demonstrated that colloidal nanocrystals can be compatible with air stable operations, fast detection, and strong absorption. We discuss the recent progresses relative to multipixel devices and show results obtained by coupling short-wave infrared nanoparticles with CMOS circuits to achieve video rate VGA format imaging. In particular we present that nanocrystals are a promising material for long range (>150 m) active detection in both continuous wave and pulsed mode with a time resolution down to 10 ns.
