Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance

Localized surface plasmon-induced photoreactions at metal nanostructures have become central research topics in biology, catalysis, and analytical chemistry. In particular, the decomposition of organic pollutants is a popular topic. Rhodamine B is useful in the dye industry and biology; however, it...

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Main Authors: Satoshi Kaneko, Shuhei Watanabe, Shinya Kasai, Tomoaki Nishino, Kazuhito Tsukagoshi, Manabu Kiguchi
Format: Article
Language:English
Published: AIP Publishing LLC 2019-03-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5093763
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author Satoshi Kaneko
Shuhei Watanabe
Shinya Kasai
Tomoaki Nishino
Kazuhito Tsukagoshi
Manabu Kiguchi
author_facet Satoshi Kaneko
Shuhei Watanabe
Shinya Kasai
Tomoaki Nishino
Kazuhito Tsukagoshi
Manabu Kiguchi
author_sort Satoshi Kaneko
collection DOAJ
description Localized surface plasmon-induced photoreactions at metal nanostructures have become central research topics in biology, catalysis, and analytical chemistry. In particular, the decomposition of organic pollutants is a popular topic. Rhodamine B is useful in the dye industry and biology; however, it is harmful to humans and the environment. In this study, we investigated the decomposition of the Rhodamine B molecule with a structurally well-defined array of gold square dimers. The array of gold square dimers was fabricated by electron beam lithography, which provided a homogenous well-defined reaction field. Continuous Raman spectral measurements using a near-infrared laser clearly showed that while the Rhodamine B molecules were stable in the absence of the gold square dimers, they were decomposed under near-infrared-light irradiation.
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spelling doaj.art-0e1ea1e1f82d439ea3761c9f0e52e15f2022-12-21T22:55:40ZengAIP Publishing LLCAIP Advances2158-32262019-03-0193035153035153-510.1063/1.5093763106903ADVNear-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distanceSatoshi Kaneko0Shuhei Watanabe1Shinya Kasai2Tomoaki Nishino3Kazuhito Tsukagoshi4Manabu Kiguchi5Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-10 Ookayama, Meguro-ku, Tokyo 152-8551, JapanDepartment of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-10 Ookayama, Meguro-ku, Tokyo 152-8551, JapanJST, Presto 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, JapanDepartment of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-10 Ookayama, Meguro-ku, Tokyo 152-8551, JapanInternational Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, JapanDepartment of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1 W4-10 Ookayama, Meguro-ku, Tokyo 152-8551, JapanLocalized surface plasmon-induced photoreactions at metal nanostructures have become central research topics in biology, catalysis, and analytical chemistry. In particular, the decomposition of organic pollutants is a popular topic. Rhodamine B is useful in the dye industry and biology; however, it is harmful to humans and the environment. In this study, we investigated the decomposition of the Rhodamine B molecule with a structurally well-defined array of gold square dimers. The array of gold square dimers was fabricated by electron beam lithography, which provided a homogenous well-defined reaction field. Continuous Raman spectral measurements using a near-infrared laser clearly showed that while the Rhodamine B molecules were stable in the absence of the gold square dimers, they were decomposed under near-infrared-light irradiation.http://dx.doi.org/10.1063/1.5093763
spellingShingle Satoshi Kaneko
Shuhei Watanabe
Shinya Kasai
Tomoaki Nishino
Kazuhito Tsukagoshi
Manabu Kiguchi
Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance
AIP Advances
title Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance
title_full Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance
title_fullStr Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance
title_full_unstemmed Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance
title_short Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance
title_sort near infrared light induced decomposition of rhodamine b triggered by localized surface plasmon at gold square dimers with well defined separation distance
url http://dx.doi.org/10.1063/1.5093763
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