We report an intercluster compound based on co-deposition of the Au cluster [Au9(PPh3)8](NO3)3 and the fulleride KC60(THF). Electronic properties characteristic for a charge interaction between superatoms emerge within the solid state material [Au9(PPh3)8](NO3)3−x(C60)x, as confirmed by UV–VIS and Raman spectroscopy and I–V measurements. These emergent properties are related to the superatomic electronic states of the initial clusters. The material is characterized by Fourier-transform infrared spectroscopy, x-ray diffraction, Raman spectroscopy, and electrical measurements. Structural optimization and ab initio band structure calculations are performed with density functional theory to interpret the nature of the electronic states in the material; Bader charge calculations assign effective oxidation states in support of the superatomic model of cluster interactions.
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28 September 2021
Research Article|
September 28 2021
Emergent electronic properties in Co-deposited superatomic clusters
Special Collection:
From Atom-Precise Nanoclusters to Superatom Materials
Holger Fiedler
;
Holger Fiedler
a)
1
The MacDiarmid Institute of Advanced Materials and Nanotechnology, A New Zealand Centre of Research Excellence
, Wellington New Zealand
2
School of Chemical and Physical Sciences, Victoria University of Wellington
, Wellington 6012, New Zealand
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Julia Schacht;
Julia Schacht
1
The MacDiarmid Institute of Advanced Materials and Nanotechnology, A New Zealand Centre of Research Excellence
, Wellington New Zealand
2
School of Chemical and Physical Sciences, Victoria University of Wellington
, Wellington 6012, New Zealand
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Lukas Hammerschmidt;
Lukas Hammerschmidt
1
The MacDiarmid Institute of Advanced Materials and Nanotechnology, A New Zealand Centre of Research Excellence
, Wellington New Zealand
3
The Department of Physics, University of Auckland
, Private Bag 92019, Auckland 1010, New Zealand
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Vladimir Golovko
;
Vladimir Golovko
b)
1
The MacDiarmid Institute of Advanced Materials and Nanotechnology, A New Zealand Centre of Research Excellence
, Wellington New Zealand
4
School of Physical and Chemical Sciences, University of Canterbury
, Private Bag 4800, Christchurch 8140, New Zealand
b)Authors to whom correspondence should be addressed: vladimir.golovko@canterbury.ac.nz; n.gaston@auckland.ac.nz; and jhalpert@ust.hk
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Nicola Gaston
;
Nicola Gaston
b)
1
The MacDiarmid Institute of Advanced Materials and Nanotechnology, A New Zealand Centre of Research Excellence
, Wellington New Zealand
3
The Department of Physics, University of Auckland
, Private Bag 92019, Auckland 1010, New Zealand
b)Authors to whom correspondence should be addressed: vladimir.golovko@canterbury.ac.nz; n.gaston@auckland.ac.nz; and jhalpert@ust.hk
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Jonathan E. Halpert
Jonathan E. Halpert
b)
1
The MacDiarmid Institute of Advanced Materials and Nanotechnology, A New Zealand Centre of Research Excellence
, Wellington New Zealand
2
School of Chemical and Physical Sciences, Victoria University of Wellington
, Wellington 6012, New Zealand
5
The Hong Kong University of Science and Technology (HKUST), Clear Water Bay Road
, Kowloon, Hong Kong 999077, Hong Kong S.A.R.b)Authors to whom correspondence should be addressed: vladimir.golovko@canterbury.ac.nz; n.gaston@auckland.ac.nz; and jhalpert@ust.hk
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a)
Present address: GNS Science, Lower Hutt, New Zealand.
b)Authors to whom correspondence should be addressed: vladimir.golovko@canterbury.ac.nz; n.gaston@auckland.ac.nz; and jhalpert@ust.hk
Note: This paper is part of the JCP Special Topic on From Atom-Precise Nanoclusters to Superatom Materials.
J. Chem. Phys. 155, 124309 (2021)
Article history
Received:
June 17 2021
Accepted:
September 01 2021
Citation
Holger Fiedler, Julia Schacht, Lukas Hammerschmidt, Vladimir Golovko, Nicola Gaston, Jonathan E. Halpert; Emergent electronic properties in Co-deposited superatomic clusters. J. Chem. Phys. 28 September 2021; 155 (12): 124309. https://doi.org/10.1063/5.0060302
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