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Realization of Nanolene: A Planar Array of Perfectly Aligned, Air-Suspended Nanowires.
Small ( IF 13.0 ) Pub Date : 2020-02-19 , DOI: 10.1002/smll.201906845
Jae-Shin Lee 1 , Kwang-Wook Choi 1 , Jae-Young Yoo 1 , Min-Seung Jo 1 , Jun-Bo Yoon 1
Affiliation  

Air suspension and alignment are fundamental requirements to make the best use of nanowires' unique properties; however, satisfying both requirements is very challenging due to the mechanical instability of air-suspended nanowires. Here, a perfectly aligned air-suspended nanowire array called "nanolene" is demonstrated, which has a high mechanical stability owing to a C-channel-shaped cross-section of the nanowires. The excellent mechanical stability is provided through geometrical modeling and finite element method simulations. The C-channel cross-section can be realized by top-down fabrication procedures, resulting in reliable demonstrations of the nanolenes with various materials and geometric parameters. The fabrication process provides large-area uniformity; therefore, nanolene can be considered as a 2D planar platform for 1D nanowire arrays. Thanks to the high mechanical stability of the proposed nanolene, perfectly aligned air-suspended nanowire arrays with an unprecedented length of 1 mm (aspect ratio ≈5100) are demonstrated. Since the nanolene can be used in an energy-efficient nanoheater, two energy-stringent sensors, namely, an air-flow sensor and a carbon monoxide gas sensor, are demonstrated. In particular, the gas sensor achieves sub-10 mW operations, which is a requirement for application in mobile phones. The proposed nanolene will pave the way to accelerate nanowire research and industrialization by providing reliable, high-performance nanowire devices.

中文翻译:

纳米透镜的实现:完美对准的,空气悬浮的纳米线的平面阵列。

空气悬浮和对准是充分利用纳米线独特性能的基本要求。然而,由于空气悬浮的纳米线的机械不稳定性,要满足这两个要求是非常具有挑战性的。在此,展示了被称为“ nanolene”的完全对准的空气悬浮纳米线阵列,由于纳米线的C通道形横截面,该阵列具有很高的机械稳定性。通过几何建模和有限元方法仿真提供了出色的机械稳定性。C通道的横截面可以通过自上而下的制造过程来实现,从而可以可靠地演示具有各种材料和几何参数的纳米透镜。制造过程提供了大面积的均匀性;因此,纳米透镜可以被认为是一维纳米线阵列的二维平面平台。由于所提出的纳米透镜具有很高的机械稳定性,因此证明了具有空前长度1 mm(纵横比≈5100)的完美对准的空气悬浮纳米线阵列。由于可以将纳米透镜用于节能纳米加热器中,因此说明了两个能量严格传感器,即气流传感器和一氧化碳气体传感器。特别是,气体传感器可实现10 mW以下的工作,这是在移动电话中应用的要求。拟议的纳米透镜将通过提供可靠的高性能纳米线器件,为加速纳米线的研究和工业化铺平道路。演示了前所未有的长度为1毫米(纵横比≈5100)的完美对准的空气悬浮纳米线阵列。由于可以将纳米透镜用于节能纳米加热器中,因此说明了两种能量严格传感器,即气流传感器和一氧化碳气体传感器。特别是,气体传感器可实现10 mW以下的工作,这是在移动电话中应用的要求。拟议的纳米透镜将通过提供可靠的高性能纳米线器件,为加速纳米线的研究和工业化铺平道路。演示了前所未有的长度为1毫米(纵横比≈5100)的完美对准的空气悬浮纳米线阵列。由于可以将纳米透镜用于节能纳米加热器中,因此说明了两个能量严格传感器,即气流传感器和一氧化碳气体传感器。特别是,气体传感器可实现10 mW以下的工作,这是在移动电话中应用的要求。拟议的纳米透镜将通过提供可靠的高性能纳米线器件,为加速纳米线的研究和工业化铺平道路。这是在手机中应用的要求。拟议的纳米透镜将通过提供可靠的高性能纳米线器件,为加速纳米线的研究和工业化铺平道路。这是在手机中应用的要求。拟议的纳米透镜将通过提供可靠的高性能纳米线器件,为加速纳米线的研究和工业化铺平道路。
更新日期:2020-04-03
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