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arXiv 1507.04768cond-mat.mes-hall
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石墨烯作为新型单光子计数光学和IR光电探测器

Graphene as a Novel Single Photon Counting Optical and IR Photodetector

J. O. D. Williams, J. S. Lapington, M. Roy, I. B. Hutchinson

摘要:

双层石墨烯具有许多独特的光电特性,包括可调的带隙,这使得开发新的和更有效的光学和纳米电子器件成为可能。我们已经开发了一个蒙特卡罗模拟的单光子计数光电探测器纳入双层石墨烯。我们的研究结果表明,从概念上讲,从双层石墨烯制造单光子计数光电探测器(具有颜色灵敏度)用于光学和红外波长是可行的。我们的概念利用了与双层石墨烯方法相关的高载流子迁移率和可调带隙。这允许在低温温度范围内的低噪声操作,从而降低了制冷剂的成本,同时在分辨率和操作温度之间进行权衡。这项理论研究的结果现在使我们能够在光学和红外波长下制造原型光子计数器,这可能在某些科学研究应用中具有突破性的潜力。

英文摘要:

Bilayer graphene has many unique optoelectronic properties , including a tuneable band gap, that make it possible to develop new and more efficient optical and nanoelectronic devices. We have developed a Monte Carlo simulation for a single photon counting photodetector incorporating bilayer graphene. Our results show that, conceptually it would be feasible to manufacture a single photon counting photodetector (with colour sensitivity) from bilayer graphene for use across both optical and infrared wavelengths. Our concept exploits the high carrier mobility and tuneable band gap associated with a bilayer graphene approach. This allows for low noise operation over a range of cryogenic temperatures, thereby reducing the cost of cryogens with a trade off between resolution and operating temperature. The results from this theoretical study now enable us to progress onto the manufacture of prototype photon counters at optical and IR wavelengths that may have the potential to be groundbreaking in some scientific research applications.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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