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

S. Rath; S. Nozaki; D. Palagin; O. Ivashkevich; S. Maki

doi:10.1063/1.3467261

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

S. Rath, S. Nozaki, D. Palagin, O. Ivashkevich, S. Maki

Research output: Contribution to journal › Article › Scientific › peer-review

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Abstract

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.

Original language	English
Article number	053103
Journal	Applied Physics Letters
Volume	97
Issue number	5
DOIs	https://doi.org/10.1063/1.3467261
Publication status	Published - 2 Aug 2010
Externally published	Yes

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AU - Rath, S.

AU - Nozaki, S.

AU - Palagin, D.

AU - Ivashkevich, O.

AU - Maki, S.

PY - 2010/8/2

Y1 - 2010/8/2

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AB - 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.

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

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