Temperature-Dependent Emission of Monolayer-Protected Au38 Clusters

J.T. van Wijngaarden; O. Toikkanen; P. Liljeroth; B.M. Quinn; A. Meijerink

doi:10.1021/jp1018372

Temperature-Dependent Emission of Monolayer-Protected Au38 Clusters

J.T. van Wijngaarden
, O. Toikkanen
, P. Liljeroth
, B.M. Quinn
, A. Meijerink

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

Abstract

Emission spectra are presented for Au38 clusters in the temperature regime between 4 and 300 K. At room temperature, a broad emission band around 1.35 eV is observed. Upon cooling, fine structure appears that reveals the presence of at least four emission bands. The lowest energy emission band is resonant with the highest occupied molecular orbital−lowest unoccupied molecular orbital energy gap for Au38 clusters. We propose that the higher emission energy bands result from emission from higher excited states, which competes with nonradiative relaxation. The high oscillator strengths of the transitions allows for competition between radiative and nonradiative decay from the various excited states although nonradiative decay dominates, giving rise to a low quantum yield and a fast decay (

Original language	English
Pages (from-to)	16025-16028
Number of pages	4
Journal	Journal of Physical Chemistry C
Volume	114
DOIs	https://doi.org/10.1021/jp1018372
Publication status	Published - 2010

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Temperature-dependent Wijngaarden 2010
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title = "Temperature-Dependent Emission of Monolayer-Protected Au38 Clusters",

abstract = "Emission spectra are presented for Au38 clusters in the temperature regime between 4 and 300 K. At room temperature, a broad emission band around 1.35 eV is observed. Upon cooling, fine structure appears that reveals the presence of at least four emission bands. The lowest energy emission band is resonant with the highest occupied molecular orbital−lowest unoccupied molecular orbital energy gap for Au38 clusters. We propose that the higher emission energy bands result from emission from higher excited states, which competes with nonradiative relaxation. The high oscillator strengths of the transitions allows for competition between radiative and nonradiative decay from the various excited states although nonradiative decay dominates, giving rise to a low quantum yield and a fast decay (",

author = "\{van Wijngaarden\}, J.T. and O. Toikkanen and P. Liljeroth and B.M. Quinn and A. Meijerink",

year = "2010",

doi = "10.1021/jp1018372",

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journal = "Journal of Physical Chemistry C",

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T1 - Temperature-Dependent Emission of Monolayer-Protected Au38 Clusters

AU - van Wijngaarden, J.T.

AU - Toikkanen, O.

AU - Liljeroth, P.

AU - Quinn, B.M.

AU - Meijerink, A.

PY - 2010

Y1 - 2010

N2 - Emission spectra are presented for Au38 clusters in the temperature regime between 4 and 300 K. At room temperature, a broad emission band around 1.35 eV is observed. Upon cooling, fine structure appears that reveals the presence of at least four emission bands. The lowest energy emission band is resonant with the highest occupied molecular orbital−lowest unoccupied molecular orbital energy gap for Au38 clusters. We propose that the higher emission energy bands result from emission from higher excited states, which competes with nonradiative relaxation. The high oscillator strengths of the transitions allows for competition between radiative and nonradiative decay from the various excited states although nonradiative decay dominates, giving rise to a low quantum yield and a fast decay (

AB - Emission spectra are presented for Au38 clusters in the temperature regime between 4 and 300 K. At room temperature, a broad emission band around 1.35 eV is observed. Upon cooling, fine structure appears that reveals the presence of at least four emission bands. The lowest energy emission band is resonant with the highest occupied molecular orbital−lowest unoccupied molecular orbital energy gap for Au38 clusters. We propose that the higher emission energy bands result from emission from higher excited states, which competes with nonradiative relaxation. The high oscillator strengths of the transitions allows for competition between radiative and nonradiative decay from the various excited states although nonradiative decay dominates, giving rise to a low quantum yield and a fast decay (

U2 - 10.1021/jp1018372

DO - 10.1021/jp1018372

M3 - Article

SN - 1932-7447

VL - 114

SP - 16025

EP - 16028

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

ER -

Temperature-Dependent Emission of Monolayer-Protected Au38 Clusters

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