What question did this study set out to answer?

To examine the electronic structure, resonance mapping, and polyradical ground-state behavior of individual higher acenes synthesized on a gold substrate.

July 30, 2018ACS Nano

Electronic Resonances and Gap Stabilization of Higher Acenes on a Gold Surface

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To examine the electronic structure, resonance mapping, and polyradical ground-state behavior of individual higher acenes synthesized on a gold substrate.
Synthesized individual hexacene, heptacene, and decacene molecules directly on a gold surface using on-surface synthesis.
Mapped spatial and energy-resolved tunneling resonances using scanning tunneling microscopy and spectroscopy alongside theoretical ground-state modeling.
Demonstrated that the electronic gap between the first resonances below and above the Fermi level stabilizes at a finite, non-zero value.
Identified that gap stabilization is governed by a first diradical electronic perturbative contribution to the ground state.
Showed that the lowest-energy closed-shell electronic configuration remains the primary ground-state contributor in acenes extending up to decacene.

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Implication

Scanning probe microscopy study reveals energy gap stabilization in surface-bound higher acenes, suggesting a persistent closed-shell ground state up to decacene.

Cite This Study

Krüger et al. (2018) studied this question.

synapsesocial.com/papers/6a712909fe4101aa97e075eb https://doi.org/10.1021/acsnano.8b04046

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Implication

Scanning probe microscopy study reveals energy gap stabilization in surface-bound higher acenes, suggesting a persistent closed-shell ground state up to decacene.

Electronic Resonances and Gap Stabilization of Higher Acenes on a Gold Surface

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Discussion

Implication

Cite This Study

Electronic Resonances and Gap Stabilization of Higher Acenes on a Gold Surface

Key Points

Discussion

Implication

Cite This Study

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