Charge Transfer into Organic Thin Films: A Deeper Insight through Machine-Learning-Assisted Structure Search

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

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en

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7

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Advanced Science, Volume 7, issue 15

Abstract

Density functional theory calculations are combined with machine learning to investigate the coverage-dependent charge transfer at the tetracyanoethylene/Cu(111) hybrid organic/inorganic interface. The study finds two different monolayer phases, which exhibit a qualitatively different charge-transfer behavior. Our results refute previous theories of long-range charge transfer to molecules not in direct contact with the surface. Instead, they demonstrate that experimental evidence supports our hypothesis of a coverage-dependent structural reorientation of the first monolayer. Such phase transitions at interfaces may be more common than currently envisioned, beckoning a thorough reevaluation of organic/inorganic interfaces.

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Egger, A T, Hörmann, L, Jeindl, A, Scherbela, M, Obersteiner, V, Todorović, M, Rinke, P & Hofmann, O T 2020, 'Charge Transfer into Organic Thin Films : A Deeper Insight through Machine-Learning-Assisted Structure Search', Advanced Science, vol. 7, no. 15, 2000992. https://doi.org/10.1002/advs.202000992