Excimer formation of aryl iodides chemisorbed on gold nanoparticles for the significant enhancement of photoluminescence

Prasenjit Maity; Kenji Sasai; Raghu Nath Dhital; Hayato Sakai; Taku Hasobe; Hidehiro Sakurai

doi:10.1021/acs.jpclett.9b03557

Excimer formation of aryl iodides chemisorbed on gold nanoparticles for the significant enhancement of photoluminescence

Prasenjit Maity, Kenji Sasai, Raghu Nath Dhital, Hayato Sakai, Taku Hasobe, Hidehiro Sakurai

Department of Chemistry

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

6 Citations (Scopus)

Abstract

The photoluminescence properties of aryl iodides chemisorbed on gold nanoparticles were examined. Chemisorption of a series of aryl iodides onto poly(N-vinylpyrrolidone)-protected Au nanoparticles (Au:PVP) in solution resulted in highly enhanced luminescence. Kinetic studies revealed that the photoluminescence is derived from the excimer formation of aryl iodides on Au:PVP, and the process is significantly faster than intersystem crossing by the heavy atom.

Original language	English
Pages (from-to)	1199-1203
Number of pages	5
Journal	Journal of Physical Chemistry Letters
Volume	11
Issue number	4
DOIs	https://doi.org/10.1021/acs.jpclett.9b03557
Publication status	Published - 2020 Feb 20

ASJC Scopus subject areas

Materials Science(all)
Physical and Theoretical Chemistry

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10.1021/acs.jpclett.9b03557

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Excimer formation of aryl iodides chemisorbed on gold nanoparticles for the significant enhancement of photoluminescence. / Maity, Prasenjit; Sasai, Kenji; Dhital, Raghu Nath; Sakai, Hayato ; Hasobe, Taku; Sakurai, Hidehiro.

In: Journal of Physical Chemistry Letters, Vol. 11, No. 4, 20.02.2020, p. 1199-1203.

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

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title = "Excimer formation of aryl iodides chemisorbed on gold nanoparticles for the significant enhancement of photoluminescence",

abstract = "The photoluminescence properties of aryl iodides chemisorbed on gold nanoparticles were examined. Chemisorption of a series of aryl iodides onto poly(N-vinylpyrrolidone)-protected Au nanoparticles (Au:PVP) in solution resulted in highly enhanced luminescence. Kinetic studies revealed that the photoluminescence is derived from the excimer formation of aryl iodides on Au:PVP, and the process is significantly faster than intersystem crossing by the heavy atom.",

author = "Prasenjit Maity and Kenji Sasai and Dhital, {Raghu Nath} and Hayato Sakai and Taku Hasobe and Hidehiro Sakurai",

note = "Funding Information: This work is supported by the JST ACT-C project (JPMJCR12YI) and a Grant-in-Aid for Scientific Research on Innovative Area “π System Figuration” from MEXT (JP26102002). R.N.D. acknowledges JSPS for the postdoctoral scholarship. P.M. acknowledges CSIR Research Grant 01(2873)/17/EMR-II. Publisher Copyright: Copyright {\textcopyright} 2020 American Chemical Society.",

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AU - Sakai, Hayato

AU - Hasobe, Taku

AU - Sakurai, Hidehiro

N1 - Funding Information: This work is supported by the JST ACT-C project (JPMJCR12YI) and a Grant-in-Aid for Scientific Research on Innovative Area “π System Figuration” from MEXT (JP26102002). R.N.D. acknowledges JSPS for the postdoctoral scholarship. P.M. acknowledges CSIR Research Grant 01(2873)/17/EMR-II. Publisher Copyright: Copyright © 2020 American Chemical Society.

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AB - The photoluminescence properties of aryl iodides chemisorbed on gold nanoparticles were examined. Chemisorption of a series of aryl iodides onto poly(N-vinylpyrrolidone)-protected Au nanoparticles (Au:PVP) in solution resulted in highly enhanced luminescence. Kinetic studies revealed that the photoluminescence is derived from the excimer formation of aryl iodides on Au:PVP, and the process is significantly faster than intersystem crossing by the heavy atom.

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Excimer formation of aryl iodides chemisorbed on gold nanoparticles for the significant enhancement of photoluminescence

Abstract

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