Exploiting Intersubband Plasmons in Vertically Aligned Carbon Nanotubes for Near-Infrared Electrochromic Windows.

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-07-24 DOI:10.1021/acs.nanolett.5c00059

Alex Abelson,Philip M Jean-Remy,Tom Nakotte,Paul E Munger,Steven F Buchsbaum,Sei Jin Park,Anna M Hiszpanski

引用次数: 0

Abstract

Optically transparent materials with switchable near-infrared (NIR) transmissivity are of significant interest for energy-saving smart window technologies. To this end, we demonstrate that semitransparent films of vertically aligned carbon nanotubes (CNTs) incorporated into electrochemically gated devices exhibit NIR transmittance changes up to 47% and bistable optical states that are appealing for low-power, large-area operation. The tunable NIR electrochromic response is driven by a doping-induced intersubband plasmon (ISBP) absorption, an optical feature in CNTs that is selective to light polarized perpendicular to the CNT axis. Vertically aligned CNT films (as opposed to more conventional planar CNT mats) thus allow us to isolate and study the ISBP resonance changes with applied voltage, electrode material, and film thickness.

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利用垂直排列碳纳米管的子带间等离子体在近红外电致变色窗口中的应用。

具有可切换近红外（NIR）透过率的光透明材料是节能智能窗技术的重要研究方向。为此，我们证明了将垂直排列的碳纳米管（CNTs）的半透明薄膜结合到电化学门控器件中，其近红外透射率变化高达47%，并且具有双稳态光学状态，可用于低功耗，大面积操作。可调谐的近红外电致变色响应是由掺杂诱导的子带间等离子体（ISBP）吸收驱动的，这是碳纳米管的一种光学特性，可选择垂直于碳纳米管轴的光偏振。垂直排列的碳纳米管薄膜（与更传统的平面碳纳米管垫相反）因此使我们能够隔离和研究ISBP共振随施加电压，电极材料和薄膜厚度的变化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.