耦合等离子体晶格的二维半导体光致发光的电控制

IF 16 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

ACS Nano Pub Date : 2025-01-19 DOI:10.1021/acsnano.4c15459

Antti J. Moilanen, Moritz Cavigelli, Takashi Taniguchi, Kenji Watanabe, Lukas Novotny

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引用次数: 0

摘要

将二维半导体集成到纳米光子结构中为先进的光电器件提供了一个通用的平台。实现这些系统的一个关键挑战是如何控制这些材料的光发射。在这项工作中，我们证明了过渡金属二硫族化合物（TMDs）的光致发光（PL）与金属纳米颗粒阵列中的表面晶格共振耦合的调制。我们发现光的强度和发射角都可以通过调整晶格参数来调节。通过将栅极静电涂覆耦合到等离子体晶格的tmd，我们在低施加电压下实现了PL强度超过2个数量级的切换。我们的研究结果代表了基于二维半导体的电力和电力可调谐光源的重要一步。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Electrical Control of Photoluminescence in 2D Semiconductors Coupled to Plasmonic Lattices

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Electrical Control of Photoluminescence in 2D Semiconductors Coupled to Plasmonic Lattices

Integrating two-dimensional (2D) semiconductors into nanophotonic structures provides a versatile platform for advanced optoelectronic devices. A key challenge in realizing these systems is to achieve control over light emission from these materials. In this work, we demonstrate the modulation of photoluminescence (PL) in transition metal dichalcogenides (TMDs) coupled to surface lattice resonances in metal nanoparticle arrays. We show that both the intensity and the emission angle of light can be tuned by adjusting the lattice parameters. By applying gate electrodes to electrostatically dope the TMDs coupled to plasmonic lattices, we achieve PL intensity switching over 2 orders of magnitude with a low applied voltage. Our results represent an important step toward electrically powered and electrically tunable light sources based on 2D semiconductors.

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来源期刊

ACS Nano 工程技术-材料科学：综合

CiteScore

26.00

自引率

4.10%

发文量

1627

审稿时长

1.7 months

期刊介绍： ACS Nano, published monthly, serves as an international forum for comprehensive articles on nanoscience and nanotechnology research at the intersections of chemistry, biology, materials science, physics, and engineering. The journal fosters communication among scientists in these communities, facilitating collaboration, new research opportunities, and advancements through discoveries. ACS Nano covers synthesis, assembly, characterization, theory, and simulation of nanostructures, nanobiotechnology, nanofabrication, methods and tools for nanoscience and nanotechnology, and self- and directed-assembly. Alongside original research articles, it offers thorough reviews, perspectives on cutting-edge research, and discussions envisioning the future of nanoscience and nanotechnology.