TY - JOUR
T1 - Near-infrared-light-induced decomposition of Rhodamine B triggered by localized surface plasmon at gold square dimers with well-defined separation distance
AU - Kaneko, Satoshi
AU - Watanabe, Shuhei
AU - Kasai, Shinya
AU - Nishino, Tomoaki
AU - Tsukagoshi, Kazuhito
AU - Kiguchi, Manabu
N1 - Funding Information:
The authors acknowledge technical help from the International Center for Materials Nanoarchitectonics (MANA) Foundry at the National Institute for Materials Science, Japan, and the Materials Analysis Division, Technical Department of Tokyo Institute of Technology. This work was supported by Grants-in-Aid for Scientific Research (Nos. 18H03896, 17K19100, 17K14468, 26102013) from the MEXT, PRESTO Grant Number JPMJPR18I3, Research Foundation for the Electro Technology of Chubu, and Tokyo Tech Fund.
Publisher Copyright:
© 2019 Author(s).
PY - 2019/3/1
Y1 - 2019/3/1
N2 - 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.
AB - 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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U2 - 10.1063/1.5093763
DO - 10.1063/1.5093763
M3 - Article
AN - SCOPUS:85063682954
VL - 9
JO - AIP Advances
JF - AIP Advances
SN - 2158-3226
IS - 3
M1 - 035153
ER -