Thin‐Film Organic Heteroepitaxy

Jordan T. Dull; Xu He; Jonathan Viereck; Qianxiang Ai; Ritika Ramprasad; Maria Clara Otani; Jeni Sorli; Jason W. Brandt; Brad P. Carrow; Arthur D. Tinoco; Yueh‐Lin Loo; Chad Risko; Sylvie Rangan; Antoine Kahn; Barry P. Rand

doi:10.1002/adma.202302871

journal article·2023-09Open access

Thin‐Film Organic Heteroepitaxy

Jordan T. Dull, Xu He, Jonathan Viereck, Qianxiang Ai, Ritika Ramprasad, Maria Clara Otani, Jeni Sorli, Jason W. Brandt, Brad P. Carrow, Arthur D. Tinoco, Yueh‐Lin Loo, Chad Risko, Sylvie Rangan, Antoine Kahn, Barry P. Rand

Advanced Materials· Volume 35· Issue 35

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Source abstract

Abstract

Abstract Incorporating crystalline organic semiconductors into electronic devices requires understanding of heteroepitaxy given the ubiquity of heterojunctions in these devices. However, while rules for commensurate epitaxy of covalent or ionic inorganic material systems are known to be dictated by lattice matching constraints, rules for heteroepitaxy of molecular systems are still being written. Here, it is found that lattice matching alone is insufficient to achieve heteroepitaxy in molecular systems, owing to weak intermolecular forces that describe molecular crystals. It is found that, in addition, the lattice matched plane also must be the lowest energy surface of the adcrystal to achieve one‐to‐one commensurate molecular heteroepitaxy over a large area. Ultraviolet photoelectron spectroscopy demonstrates the lattice matched interface to be of higher electronic quality than a disordered interface of the same materials.

Source: crossref · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Organic Electronics and Photovoltaics · Molecular Junctions and Nanostructures · Surface Chemistry and Catalysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrical and Computer Engineering Princeton University Princeton NJ 08544 USA

Department of Physics and Astronomy and Laboratory for Surface Modification Rutgers University Piscataway NJ 08854 USA

Department of Chemistry and Center for Applied Energy Research University of Kentucky Lexington KY 40506 USA

Department of Chemical and Biological Engineering Princeton University Princeton NJ 08544 USA

Department of Chemistry Princeton University Princeton NJ 08544 USA

Department of Chemistry University of Puerto Rico‐Río Piedras Campus San Juan PR 00925 USA

Andlinger Center for Energy and the Environment Princeton University Princeton NJ 08544 USA

Funding

U.S. Department of Energy · National Science Foundation

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