水包铟团簇中的远紫外激子形成

IF 4.6 2区化学 Q2 CHEMISTRY, PHYSICAL

The Journal of Physical Chemistry Letters Pub Date : 2025-01-27 DOI:10.1021/acs.jpclett.5c00001

Naoki Nagatsuka, Ryoto Matsuguchi, Kazuya Watanabe, Takanori Koitaya, Daiki Yamamoto, Hiroshi Okuyama, Tomokazu Yasuike

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引用次数: 0

摘要

在这项工作中，我们研究了铟纳米团簇和水分子之间形成的远紫外区激子。在超高真空条件下，在石墨烯上制备了铟团簇，并在6-7 eV处显示出强的局域表面等离子激元（LSP）吸收带。当水分子在115 K时吸附在簇上时，产生了大于1 eV的带分裂，表明LSP与水4a1←1b1跃迁之间存在强耦合。揭示了作为水覆盖的函数的光谱演变，从而确定了倍激子集体效应的衰减长度为~ 8 nm。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Far-Ultraviolet Plexciton Formation in Water-Covered Indium Clusters

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Far-Ultraviolet Plexciton Formation in Water-Covered Indium Clusters

In this work, we study the plexciton in the far-ultraviolet region formed between indium nanoclusters and water molecules. The indium clusters are fabricated on graphene under ultrahigh vacuum conditions and show a strong localized surface plasmon polariton (LSP) absorption band at 6–7 eV. Adsorption of water molecules onto the clusters at 115 K induces a band splitting larger than 1 eV, indicating a strong coupling between the LSP and water 4a₁ ← 1b₁ transition. The spectral evolution as a function of the water coverage is revealed, enabling the determination of the decay length of the plexciton collective effect to be ∼8 nm.

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来源期刊

The Journal of Physical Chemistry Letters CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

9.60

自引率

7.00%

发文量

1519

审稿时长

1.6 months

期刊介绍： The Journal of Physical Chemistry (JPC) Letters is devoted to reporting new and original experimental and theoretical basic research of interest to physical chemists, biophysical chemists, chemical physicists, physicists, material scientists, and engineers. An important criterion for acceptance is that the paper reports a significant scientific advance and/or physical insight such that rapid publication is essential. Two issues of JPC Letters are published each month.