Dynamic features of rod-shaped Au nanoclusters

Woong Young So; Anindita Das; Shuxin Wang; Shuo Zhao; Hee Young Byun; Dana Lee; Santosh Kumar; Rongchao Jin; Linda A. Peteanu

doi:10.1117/12.2185773

20 August 2015 Dynamic features of rod-shaped Au nanoclusters

Woong Young So, Anindita Das, Shuxin Wang, Shuo Zhao, Hee Young Byun, Dana Lee, Santosh Kumar, Rongchao Jin, Linda A. Peteanu

Author Affiliations +

Proceedings Volume 9549, Physical Chemistry of Interfaces and Nanomaterials XIV; 95491D (2015) https://doi.org/10.1117/12.2185773
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States

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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Citation Download Citation

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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