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Applied Physics Letters / Volume 97 / Issue 5 / NANOSCALE SCIENCE AND DESIGN

Appl. Phys. Lett. 97, 053103 (2010); http://dx.doi.org/10.1063/1.3467261 (3 pages)

Aqueous-based synthesis of atomic gold clusters: Geometry and optical properties

S. Rath1, S. Nozaki1, D. Palagin2, V. Matulis2, O. Ivashkevich2, and S. Maki3

1Department of Electronic Engineering, The University of Electro-Communication, 1-5-1, Chofugaoka, Chofu-Shi, Tokyo 182-8585, Japan
2Research Institute for Physical Chemical Problems, Belarusian State University, 14 Leningradskaya Street, Minsk 220030, Belarus
3Department of Applied Physics and Chemistry, The University of Electro-Communication, 1-5-1, Chofugaoka, Chofu-Shi, Tokyo 182-8585, Japan

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(Received 8 April 2010; accepted 26 June 2010; published online 2 August 2010)

Gold clusters synthesized by the solution-based growth technique have exhibited ultraviolet (UV) light emission with nearly zero Stokes shift. Atomic arrangement decided optical properties of the Au microclusters have been studied extensively. In addition to the time-of-flight mass spectra, the comparison of experimental and theoretical emission and absorption spectra confirms the presence of Au8 clusters with the planar hexagon+1-shaped geometry. The observed UV emission is attributed to the transition from the highest occupied to the lowest unoccupied molecular orbitals of the hexagon+1 structured Au8 clusters.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

atomic clusters, gold, molecular electronic states, time of flight mass spectra, ultraviolet spectra

PACS

  • 36.40.Vz

    Optical properties of clusters

  • 36.40.Mr

    Spectroscopy and geometrical structure of clusters

  • 32.30.Jc

    Visible and ultraviolet spectra

  • 32.10.Bi

    Atomic masses, mass spectra, abundances, and isotopes

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3467261

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
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    W. Huang, R. Pal, L. -M. Wang, X. C. Zeng, and L. -S. Wang, J. Chem. Phys. 132, 054305 (2010)JCPSA6000132000005054305000001.


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