Plasma resonance ultraviolet absorption spectroscopy of gold nanorods

Abstract Au nanorods were prepared by seed growth method. Based on the local surface plasmon resonance (SPR) absorption spectra of gold nanoparticles, the formation and growth kinetics of gold nanorods were observed and studied in real time. The effects of temperature and reaction time on the growth...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 680; no. 1; p. 12097
Main Authors Li, Huiqin, Yan, Shaotian, Wu, Lihua, Dou, Shumei, Ren, Xinyue
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2021
Subjects
Absorption spectra
Absorption spectroscopy
Charge transfer
Gold
Growth kinetics
Nanoparticles
Nanorods
Plasma resonance
Reaction time
Resonance
Spectrum analysis
Surface plasmon resonance
Temperature effects
Ultraviolet absorption
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Summary:Abstract Au nanorods were prepared by seed growth method. Based on the local surface plasmon resonance (SPR) absorption spectra of gold nanoparticles, the formation and growth kinetics of gold nanorods were observed and studied in real time. The effects of temperature and reaction time on the growth process of gold nanorods were emphatically investigated. It was found that the shift of SPR UV-vis absorption peak was closely related to the experimental conditions The influence factors and mechanism of SPR absorption peak shift are discussed. It is concluded that the moving direction of SPR peak is the result of the competition of particle size and charge transfer.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/680/1/012097