1999
DOI: 10.1021/jp9919720
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Temperature-Dependent Size-Controlled Nucleation and Growth of Gold Nanoclusters

Abstract: The electrochemical method of synthesis of gold nanorods in micelles gives substrate solutions that upon spotting and heating on a transmission electron microscope (TEM) substrate result in the nucleation and growth of small gold nanoclusters of narrow size distribution. The size of the nanoclusters, and not their numbers, is found to increased with increasing final temperature to which the substrate is heated. The data are fitted to a mechanism, based on Ostwald ripening in which atomic gold diffusion followe… Show more

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Cited by 119 publications
(92 citation statements)
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“…1 shows the results obtained by HPPS and UV-vis, respectively. The gold nanocluster surface plasmon lies around 525-550 nm depending upon their particle diameter [27][28][29][30][31]. The gradual red shift of the gold plasmon peak and particle size as measured by HPPS are in good agreement with each other.…”
Section: Resultssupporting
confidence: 71%
“…1 shows the results obtained by HPPS and UV-vis, respectively. The gold nanocluster surface plasmon lies around 525-550 nm depending upon their particle diameter [27][28][29][30][31]. The gradual red shift of the gold plasmon peak and particle size as measured by HPPS are in good agreement with each other.…”
Section: Resultssupporting
confidence: 71%
“…10d. The presence of the {110} high energy faces is a unique structural characteristics of the rods, possibly resulting in surface sublimation at low temperatures [37].…”
Section: Faceted Shape Of Rod-like Nanocrystalsmentioning
confidence: 99%
“…Gold nanoshells possess remarkable optical properties that differ dramatically from solid spheres. Another type of nanoparticle, gold nanoclusters (2–6 nm), has been a topic of recent interest because of its unique size, which may be advantageous in cellular uptake as well as in nuclear targeting, in addition to the unique optical and electrical properties exhibited by gold nanoclusters [2629]. Despite their small size, these nanoclusters were found to be stable because the thiolate groups form a protective layer around gold clusters, improving their stability and functionality [30,31].…”
Section: Synthesis Morphology and Properties Of Gnpsmentioning
confidence: 99%