Carbon Nanomaterial Devices for Infrared and Terahertz Technology

用于红外和太赫兹技术的碳纳米材料器件

• 批准号: 1708315
• 负责人: Junichiro Kono
• 金额: $ 37.5万
• 依托单位: William Marsh Rice University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-06-01 至 2020-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1708315&HistoricalAwards=false
• 关键词: Carbon; Nanomaterial; Devices; Infrared; Terahertz

Although technologies for the manipulation and detection of light in the visible and near-infrared range of the electromagnetic spectrum have seen extraordinary success, devices for the mid-infrared (MIR) and terahertz (THz) range of the electromagnetic spectrum have yet to reach maturity. Expanding access to this frequency range holds promise for applications in the fields of health, energy, space, communications, imaging, and sensing. Carbon nanomaterials have unique physical properties, which make them suitable candidates for applications in the MIR and THz range. Depending on the type of carbon nanotubes, they strongly absorb light in the entire frequency range from the visible to the THz region. One can select the type of carbon nanotube for a given application by selecting for a particular frequency range. Graphene absorbs light over the entire electromagnetic spectrum as well, and furthermore, one can tune the strength of absorption in the MIR and THz range by applying a gate voltage. Graphene also has a high electrical conductivity, making it suitable for high operation speed. The goal of this research is to develop devices for the detection and manipulation of light in the MIR and THz region, using sheets of aligned carbon nanotubes, graphene, and a combination of the two utilizing the best properties of each material.Technical description:Carbon nanomaterials such as single-wall carbon nanotubes (SWCNTs) and graphene are low-dimensional materials with electronic, photonic, and magnetic properties that are suitable for a variety of optoelectronic device applications especially in the less technologically developed mid-infrared (MIR) and terahertz (THz) spectral ranges. Depending on chirality, SWCNTs strongly absorb radiation across the entire electromagnetic spectrum. Recently, the fabrication of wafer-scale films of aligned, densely packed, and chirality-enriched SWCNTs has been developed using slow vacuum filtration of SWCNT solution. These films maintain the extraordinary properties of one-dimensional/anisotropic SWCNTs in a macroscopically aligned film, bringing the extraordinary properties of the nanomaterial to a technologically useful macroscopic scale. For instance, depending on the polarization of radiation with respect to the nanotube alignment in the film, one can strongly absorb or completely transmit incident radiation over a broad frequency range, including the MIR and THz regions. Graphene also absorbs light in the entire electromagnetic spectrum, but the carrier density can be tuned by electrostatic gating to control the absorption of light in the MIR and THz regions. Furthermore, the high electrical conductivity of graphene leads to high operation speed. The goal of this research is to create hyperbolic metamaterials, photodetectors, and modulators in the MIR and THz range, utilizing aligned SWCNT films, graphene, and a combination of the two materials.

尽管在电磁波谱的可见和近红外范围内操纵和探测光的技术已经取得了非凡的成功，但用于电磁波谱的中红外（MIR）和太赫兹（THz）范围的设备尚未达到成熟。扩大对这一频率范围的访问为卫生、能源、空间、通信、成像和传感领域的应用带来了希望。碳纳米材料具有独特的物理性质，这使得它们适合在MIR和太赫兹范围内应用。根据碳纳米管的类型，它们强烈吸收从可见光到太赫兹区域的整个频率范围内的光。通过选择特定的频率范围，可以为给定的应用选择碳纳米管的类型。石墨烯也可以吸收整个电磁波谱上的光，此外，人们可以通过施加栅极电压来调节MIR和THz范围内的吸收强度。石墨烯还具有高导电性，使其适用于高运行速度。本研究的目标是开发用于在MIR和THz区域检测和操纵光的设备，使用排列的碳纳米管，石墨烯片，以及利用每种材料的最佳性能将两者结合起来。技术描述：碳纳米材料，如单壁碳纳米管（SWCNTs）和石墨烯是具有电子、光子和磁性质的低维材料，适用于各种光电器件应用，特别是在技术欠发达的中红外（MIR）和太赫兹（THz）光谱范围。根据手性的不同，SWCNTs可以在整个电磁波谱中强烈吸收辐射。近年来，采用慢速真空过滤SWCNTs溶液的方法制备了排列整齐、密集排列和富集手性的SWCNTs晶圆级薄膜。这些薄膜在宏观排列的薄膜中保持了一维/各向异性SWCNTs的非凡特性，将纳米材料的非凡特性带入了技术上有用的宏观尺度。例如，根据相对于薄膜中纳米管排列的辐射偏振，人们可以在很宽的频率范围内强烈吸收或完全传输入射辐射，包括MIR和太赫兹区域。石墨烯也吸收整个电磁波谱中的光，但可以通过静电门控来调节载流子密度，以控制MIR和THz区域的光吸收。此外，石墨烯的高导电性导致了高运算速度。这项研究的目标是利用排列的swcnts薄膜、石墨烯和两种材料的组合，在MIR和太赫兹范围内创造双曲超材料、光电探测器和调制器。

项目成果

Isotropic Seebeck coefficient of aligned single-wall carbon nanotube films

• DOI: 10.1063/1.5066021
• 发表时间: 2018-12-10
• 期刊: APPLIED PHYSICS LETTERS
• 影响因子: 4
• 作者: Fukuhara, Kengo;Ichinose, Yota;Yanagi, Kazuhiro
• 通讯作者: Yanagi, Kazuhiro

Carbon nanotube woven textile photodetector

• DOI: 10.1103/physrevmaterials.2.015201
• 发表时间: 2018-01
• 期刊: Physical Review Materials
• 影响因子: 3.4
• 作者: A. Zubair;Xuan Wang;F. Mirri;D. Tsentalovich;Naoki Fujimura;D. Suzuki;K. Soundarapandian;Y. Kawano;M. Pasquali;J. Kono

Macroscopically Aligned Carbon Nanotubes as a Refractory Platform for Hyperbolic Thermal Emitters

• DOI: 10.1021/acsphotonics.9b00452
• 发表时间: 2019-03
• 期刊: ACS Photonics
• 影响因子: 7
• 作者: Weilu Gao;C. Doiron;Xinwei Li;J. Kono;G. Naik

One-directional thermal transport in densely aligned single-wall carbon nanotube films

• DOI: 10.1063/1.5127209
• 发表时间: 2019-11
• 期刊: Applied Physics Letters
• 影响因子: 4
• 作者: Shingi Yamaguchi;Issei Tsunekawa;Natsumi Komatsu;Weilu Gao;T. Shiga;T. Kodama;J. Kono;J. Shiomi

Guided-mode resonances in flexible 2D terahertz photonic crystals

• DOI: 10.1364/optica.388761
• 发表时间: 2020-05-20
• 期刊: OPTICA
• 影响因子: 10.4
• 作者: Kyaw, Chan;yahiaoui, Riad;Searles, Thomas A.
• 通讯作者: Searles, Thomas A.