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20 August 2015 Dynamic features of rod-shaped Au nanoclusters
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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.
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© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Woong Young So, Anindita Das, Shuxin Wang, Shuo Zhao, Hee Young Byun, Dana Lee, Santosh Kumar, Rongchao Jin, and Linda A. Peteanu "Dynamic features of rod-shaped Au nanoclusters", Proc. SPIE 9549, Physical Chemistry of Interfaces and Nanomaterials XIV, 95491D (20 August 2015); https://doi.org/10.1117/12.2185773
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