Femtosecond emission studies on gold nanoparticles

Young Nam Hwang, Dae Hong Jeong, Hyun Jong Shin, Dongho Kim, Sae Chae Jeoung, Seon Hee Han, Jae Suk Lee, Gyoujin Cho

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

We report the light emission decay in bare gold nanoparticles by using the fluorescence up-conversion technique. The emission decay, of which the time constants increase consistently with excitation intensity, closely follows the electron thermalization dynamics, which has been independently observed from the bleach recovery of the surface plasmon band under the identical experimental conditions. These results indicate that a weak light emission from relatively large gold nanoparticles is attributable to the interactions between Surface plasmons and incident photons, which occur simultaneously with the thermal electron relaxation.

Original languageEnglish
Pages (from-to)7581-7584
Number of pages4
JournalJournal of Physical Chemistry B
Volume106
Issue number31
DOIs
Publication statusPublished - 2002 Aug 8

Fingerprint

Light emission
Gold
light emission
gold
Nanoparticles
nanoparticles
Plasmons
Electrons
decay
plasmons
time constant
electrons
Photons
Fluorescence
recovery
Recovery
fluorescence
photons
excitation
interactions

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Hwang, Y. N., Jeong, D. H., Shin, H. J., Kim, D., Jeoung, S. C., Han, S. H., ... Cho, G. (2002). Femtosecond emission studies on gold nanoparticles. Journal of Physical Chemistry B, 106(31), 7581-7584. https://doi.org/10.1021/jp020656+
Hwang, Young Nam ; Jeong, Dae Hong ; Shin, Hyun Jong ; Kim, Dongho ; Jeoung, Sae Chae ; Han, Seon Hee ; Lee, Jae Suk ; Cho, Gyoujin. / Femtosecond emission studies on gold nanoparticles. In: Journal of Physical Chemistry B. 2002 ; Vol. 106, No. 31. pp. 7581-7584.
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Hwang, YN, Jeong, DH, Shin, HJ, Kim, D, Jeoung, SC, Han, SH, Lee, JS & Cho, G 2002, 'Femtosecond emission studies on gold nanoparticles', Journal of Physical Chemistry B, vol. 106, no. 31, pp. 7581-7584. https://doi.org/10.1021/jp020656+

Femtosecond emission studies on gold nanoparticles. / Hwang, Young Nam; Jeong, Dae Hong; Shin, Hyun Jong; Kim, Dongho; Jeoung, Sae Chae; Han, Seon Hee; Lee, Jae Suk; Cho, Gyoujin.

In: Journal of Physical Chemistry B, Vol. 106, No. 31, 08.08.2002, p. 7581-7584.

Research output: Contribution to journalArticle

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AU - Han, Seon Hee

AU - Lee, Jae Suk

AU - Cho, Gyoujin

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Hwang YN, Jeong DH, Shin HJ, Kim D, Jeoung SC, Han SH et al. Femtosecond emission studies on gold nanoparticles. Journal of Physical Chemistry B. 2002 Aug 8;106(31):7581-7584. https://doi.org/10.1021/jp020656+