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  Layered Insulator/Molecule/Metal Heterostructures with Molecular Functionality through Porphyrin Intercalation

Ducke, J., Riss, A., Pérez Paz, A., Seufert, K., Schwarz, M., Garnica, M., et al. (2018). Layered Insulator/Molecule/Metal Heterostructures with Molecular Functionality through Porphyrin Intercalation. ACS Nano, 12(3), 2677-2684. doi:10.1021/acsnano.7b08887.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-A94E-A Version Permalink: http://hdl.handle.net/21.11116/0000-0003-A4E8-E
Genre: Journal Article

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 Creators:
Ducke, J.1, Author
Riss, A.1, Author
Pérez Paz, A.2, 3, Author
Seufert, K.1, Author
Schwarz, M.1, Author
Garnica, M.1, Author
Rubio, A.2, 4, 5, Author              
Auwärter, W.1, Author
Affiliations:
1Physics Department E20, Technical University of Munich, ou_persistent22              
2Nano-Bio Spectroscopy Group and ETSF, Universidad del País Vasco, ou_persistent22              
3School of Chemical Sciences and Engineering and School of Physical Sciences and Nanotechnology, Yachay Tech University, ou_persistent22              
4Theory Group, Theory Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society, ou_2266715              
5Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, ou_persistent22              

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Free keywords: hexagonal boron nitride, intercalation, tautomerization, porphyrins, STM, nc-AFM, DFT
 Abstract: Intercalation of molecules into layered materials is actively researched in materials science, chemistry, and nanotechnology, holding promise for the synthesis of van der Waals heterostructures and encapsulated nanoreactors. However, the intercalation of organic molecules that exhibit physical or chemical functionality remains a key challenge to date. In this work, we present the synthesis of heterostructures consisting of porphines sandwiched between a Cu(111) substrate and an insulating hexagonal boron nitride (h-BN) monolayer. We investigated the energetics of the intercalation, as well as the influence of the capping h-BN layer on the behavior of the intercalated molecules using scanning probe microscopy and density functional theory calculations. While the self-assembly of the molecules is altered upon intercalation, we show that the intrinsic functionalities, such as switching between different porphine tautomers, are preserved. Such insulator/molecule/metal structures provide opportunities to protect organic materials from deleterious effects of atmospheric environment, can be used to control chemical reactions through spatial confinement, and give access to layered materials based on the ample availability of synthesis protocols provided by organic chemistry.

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Language(s): eng - English
 Dates: 2017-12-152018-02-182018-03-022018-03-02
 Publication Status: Published in print
 Pages: 8
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1021/acsnano.7b08887
 Degree: -

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Project name : This work was financially supported by the European Research Council Consolidator Grant NanoSurfs (no. 615233). We acknowledge financial support from the European Research Council (ERC-2015-AdG-694097), Grupos Consolidados (IT578-13), and European Union’s H2020 Programme under GA no. 676580 (NOMAD) and GA no. 646259 (MOSTOPHOS). M.G. would like to acknowledge funding by the H2020-MSCA-IF-2014 program under GA no.658070 (2DNano). W.A. acknowledges funding by the DFG via a Heisenberg professorship. A.P.P. acknowledges a postdoctoral fellowship from the Spanish “Juan de la Cierva-incorporación” program (IJCI-2014-20147). We thank Jascha Repp and Franz J. Gießibl for support and training regarding the nc-AFM technique and Maryam Ebrahimi for fruitful discussions.
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Title: ACS Nano
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 12 (3) Sequence Number: - Start / End Page: 2677 - 2684 Identifier: ISSN: 1936-0851
CoNE: /journals/resource/1936-0851