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Proceedings Paper

Dynamic features of rod-shaped Au nanoclusters
Author(s): Woong Young So; Anindita Das; Shuxin Wang; Shuo Zhao; Hee Young Byun; Dana Lee; Santosh Kumar; Rongchao Jin; Linda A. Peteanu
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Paper Abstract

Gold nanoclusters hold many potential applications such as biosensing and optics due to their emission characteristics, small size, and non-toxicity. However, their low quantum yields remain problematic for further applications, and their fluorescence mechanism is still unclear. To increase the low quantum yields, various methods have been performed: doping, tuning structures, and changing number of gold atoms. In the past, most characterizations have been performed on spherical shaped nanoclusters; in this paper, several characterizations of various rod-shaped Au nanoclusters specifically on Au25 are shown. It has been determined that the central gold atom in Au25 nano-rod is crucial in fluorescence. Furthermore, single molecule analysis of silver doped Au25 nano-rod revealed that it has more photo-stability than conjugated polymers and quantum dots.

Paper Details

Date Published: 20 August 2015
PDF: 5 pages
Proc. SPIE 9549, Physical Chemistry of Interfaces and Nanomaterials XIV, 95491D (20 August 2015); doi: 10.1117/12.2185773
Show Author Affiliations
Woong Young So, Carnegie Mellon Univ. (United States)
Anindita Das, Carnegie Mellon Univ. (United States)
Shuxin Wang, Anhui Univ. (China)
Shuo Zhao, Carnegie Mellon Univ. (United States)
Hee Young Byun, Carnegie Mellon Univ. (United States)
Dana Lee, Carnegie Mellon Univ. (United States)
Santosh Kumar, Henkel Corp. (United States)
Rongchao Jin, Carnegie Mellon Univ. (United States)
Linda A. Peteanu, Carnegie Mellon Univ. (United States)

Published in SPIE Proceedings Vol. 9549:
Physical Chemistry of Interfaces and Nanomaterials XIV
Sophia C. Hayes; Eric R. Bittner, Editor(s)

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