Plasmon enhanced optical responses of diarylethene molecules adsorbed on gold nanorods

Syogo Noda; Seiju Hasegawa; Hiroyuki Hamada; Seiya Kobatake; Kohei Imura

doi:10.1246/cl.190068

Plasmon enhanced optical responses of diarylethene molecules adsorbed on gold nanorods

Syogo Noda, Seiju Hasegawa, Hiroyuki Hamada, Seiya Kobatake, Kohei Imura^*

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Assemblies of gold nanorods capped with poly-diarylethene (DE) were chemically prepared in a solution. Plasmon assisted optical responses of the poly(DE) have been studied. Fluorescence from the open-form of DE was mostly quenched near 550nm due to interband transition of gold, while fluorescence near 700nm was slightly enhanced by the longitudinal plasmon resonance. Cycloreversion reaction of the gold nanorodpoly( DE) has been also studied, and it has been found that the reaction rate is enhanced by the plasmon excitation and increases nearly two-fold in the assembly. The magnitude of the enhancement is qualitatively consistent with the spatially and orientationally averaged value of the simulated optical field enhancements in the vicinity of the nanorod.

Original language	English
Pages (from-to)	537-540
Number of pages	4
Journal	Chemistry Letters
Volume	48
Issue number	6
DOIs	https://doi.org/10.1246/cl.190068
Publication status	Published - 2019

Keywords

Diarylethene
Gold nanorod
Plasmon

ASJC Scopus subject areas

Chemistry(all)

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10.1246/cl.190068

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@article{0d94c60c86d34d9e9730a57772d14f2a,

title = "Plasmon enhanced optical responses of diarylethene molecules adsorbed on gold nanorods",

abstract = "Assemblies of gold nanorods capped with poly-diarylethene (DE) were chemically prepared in a solution. Plasmon assisted optical responses of the poly(DE) have been studied. Fluorescence from the open-form of DE was mostly quenched near 550nm due to interband transition of gold, while fluorescence near 700nm was slightly enhanced by the longitudinal plasmon resonance. Cycloreversion reaction of the gold nanorodpoly( DE) has been also studied, and it has been found that the reaction rate is enhanced by the plasmon excitation and increases nearly two-fold in the assembly. The magnitude of the enhancement is qualitatively consistent with the spatially and orientationally averaged value of the simulated optical field enhancements in the vicinity of the nanorod.",

keywords = "Diarylethene, Gold nanorod, Plasmon",

author = "Syogo Noda and Seiju Hasegawa and Hiroyuki Hamada and Seiya Kobatake and Kohei Imura",

note = "Funding Information: This work was supported in part by JSPS KAKENHI Grant Numbers JP26107001, JP26107003, JP26107013, JP15K21725, JP16K13939, JP16H04100 in Scientific Research on Innovative Areas “Photosynergetics” from the Japan Society for the Promotion of Science. Publisher Copyright: {\textcopyright} 2019 The Chemical Society of Japan.",

year = "2019",

doi = "10.1246/cl.190068",

language = "English",

volume = "48",

pages = "537--540",

journal = "Chemistry Letters",

issn = "0366-7022",

publisher = "Chemical Society of Japan",

number = "6",

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T1 - Plasmon enhanced optical responses of diarylethene molecules adsorbed on gold nanorods

AU - Noda, Syogo

AU - Hasegawa, Seiju

AU - Hamada, Hiroyuki

AU - Kobatake, Seiya

AU - Imura, Kohei

N1 - Funding Information: This work was supported in part by JSPS KAKENHI Grant Numbers JP26107001, JP26107003, JP26107013, JP15K21725, JP16K13939, JP16H04100 in Scientific Research on Innovative Areas “Photosynergetics” from the Japan Society for the Promotion of Science. Publisher Copyright: © 2019 The Chemical Society of Japan.

PY - 2019

Y1 - 2019

N2 - Assemblies of gold nanorods capped with poly-diarylethene (DE) were chemically prepared in a solution. Plasmon assisted optical responses of the poly(DE) have been studied. Fluorescence from the open-form of DE was mostly quenched near 550nm due to interband transition of gold, while fluorescence near 700nm was slightly enhanced by the longitudinal plasmon resonance. Cycloreversion reaction of the gold nanorodpoly( DE) has been also studied, and it has been found that the reaction rate is enhanced by the plasmon excitation and increases nearly two-fold in the assembly. The magnitude of the enhancement is qualitatively consistent with the spatially and orientationally averaged value of the simulated optical field enhancements in the vicinity of the nanorod.

AB - Assemblies of gold nanorods capped with poly-diarylethene (DE) were chemically prepared in a solution. Plasmon assisted optical responses of the poly(DE) have been studied. Fluorescence from the open-form of DE was mostly quenched near 550nm due to interband transition of gold, while fluorescence near 700nm was slightly enhanced by the longitudinal plasmon resonance. Cycloreversion reaction of the gold nanorodpoly( DE) has been also studied, and it has been found that the reaction rate is enhanced by the plasmon excitation and increases nearly two-fold in the assembly. The magnitude of the enhancement is qualitatively consistent with the spatially and orientationally averaged value of the simulated optical field enhancements in the vicinity of the nanorod.

KW - Diarylethene

KW - Gold nanorod

KW - Plasmon

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U2 - 10.1246/cl.190068

DO - 10.1246/cl.190068

M3 - Article

AN - SCOPUS:85066789874

SN - 0366-7022

VL - 48

SP - 537

EP - 540

JO - Chemistry Letters

JF - Chemistry Letters

IS - 6

ER -

Plasmon enhanced optical responses of diarylethene molecules adsorbed on gold nanorods

Abstract

Keywords

ASJC Scopus subject areas

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