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dc.contributor.authorBeton, Peteren_UK
dc.contributor.otherKorolkov, Vladimir V.en_UK
dc.contributor.otherSvatek, Simon A.en_UK
dc.contributor.otherSummerfield, Alexen_UK
dc.contributor.otherKerfoot, Jamesen_UK
dc.contributor.otherYang, Lixuen_UK
dc.contributor.otherChampness, Neil R.en_UK
dc.contributor.otherBesley, Nicholas A.en_UK
dc.description.abstractThe fluorescence of a two-dimensional supramolecular network of 5,10,15,20-tetrakis(4-carboxylphenyl)porphyrin (TCPP) adsorbed on hexagonal boron nitride (hBN) is redshifted due to, primarily, adsorbate-substrate van der Waals interactions. TCPP is deposited from solution on hBN and forms facetted islands with typical dimensions of 100 nm and either square or hexagonal symmetry. The molecular arrangement is stabilised by in-plane hydrogen bonding as determined by a combination of molecular-resolution atomic force microscopy performed under ambient conditions, and density functional theory; a similar structure is observed on MoS2 and graphite. The fluorescence spectra of sub-monolayers of TCPP on hBN are redshifted by ~30 nm due to the distortion of the molecule arising from van der Waals interactions, in agreement with time-dependent density functional theory calculations. Fluorescence intensity variations are observed due to coherent partial reflections at the hBN interface implying that such hybrid structures have potential in photonic applications.en_UK
dc.publisherUniversity of Nottinghamen_UK
dc.subject.lcshBoron nitrideen_UK
dc.subject.lcshMolybdenum disulfideen_UK
dc.subject.lcshVan der Waals forcesen_UK
dc.subject.lcshAtomic force microscopyen_UK
dc.subject.lcshRed shiften_UK
dc.titleVan der Waals-induced chromatic shifts in hydrogen-bonded two-dimensional porphyrin arrays on boron nitrideen_UK
dc.subject.freeboron nitride; fluorescence; molybdenum disulphide; atomic force microscopy; porphyrin, graphite; chromatic shifts.en_UK
dc.subject.jacsJACS Subjects::Physical sciences::Physics::Chemical physics, Solid-state physicsen_UK
dc.subject.jacsJACS Subjects::Physical sciences::Chemistry::Physical chemistryen_UK
dc.subject.lcLibrary of Congress Subject Areas::Q Science::QC Physics::QC350 Optics. Light, including spectroscopyen_UK
dc.subject.lcLibrary of Congress Subject Areas::Q Science::QD Chemistry::QD450 Physical and theoretical chemistryen_UK
uon.divisionFaculties, Schools and Departments::University of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomyen_UK
uon.funder.controlledFunders::Engineering & Physical Sciences Research Councilen_UK
uon.datatypeAtomic force microscopy images, fluorescence spectraen_UK
uon.funder.freeThe Royal Societyen_UK
uon.funder.freeThe University of Nottinghamen_UK
uon.collectionmethodAtomic force micrscopes: Asylum Cypher and Asylum MFP3D. Fluorescence spectra: Horiba LABRAM confocal microscopeen_UK
uon.rightscontactUniversity of Nottinghamen_UK

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