Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers
We have investigated the influence of the substrate on the fluorescence of adsorbed organic molecules. Monolayer films of perylene-3,4,9,10-tetracarboxylic-3,4,9,10-diimide (PTCDI), a supramolecular network formed from PTCDI and melamine, and perylene-3,4,9,10-tetracarboxylic-3,4,9,10-dianhydride (P...
| Main Authors: | , , , , , , , , , , |
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| Format: | Article |
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American Institute of Physics
2018
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| Online Access: | https://eprints.nottingham.ac.uk/53030/ |
| _version_ | 1848798862896005120 |
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| author | Kerfoot, James Korolkov, Vladimir V. Nizovtsev, Anton S. Jones, Ryan Taniguchi, Takashi Watanabe, Kenji Lesanovsky, Igor Olmos, Beatriz Besley, Nicholas A. Besley, Elena Beton, Peter H. |
| author_facet | Kerfoot, James Korolkov, Vladimir V. Nizovtsev, Anton S. Jones, Ryan Taniguchi, Takashi Watanabe, Kenji Lesanovsky, Igor Olmos, Beatriz Besley, Nicholas A. Besley, Elena Beton, Peter H. |
| author_sort | Kerfoot, James |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | We have investigated the influence of the substrate on the fluorescence of adsorbed organic molecules. Monolayer films of perylene-3,4,9,10-tetracarboxylic-3,4,9,10-diimide (PTCDI), a supramolecular network formed from PTCDI and melamine, and perylene-3,4,9,10-tetracarboxylic-3,4,9,10-dianhydride (PTCDA) have been deposited on hexagonal boron nitride (hBN). The principal peaks in the fluorescence spectra of these films were red-shifted by up to 0.37 eV relative to published measurements for molecules in helium droplets. Smaller shifts (~0.03 eV) arising from interactions between neighbouring molecules are investigated by comparing the fluorescence of distinct arrangements of PTCDI, which are templated by supramolecular self-assembly and determined with molecular resolution using atomic force microscopy under ambient conditions. We compare our experimental results with red-shifts calculated using a combination of a perturbative model and density functional theory which account for, respectively, resonant and non-resonant effects of a dielectric hBN substrate. We show that the substrate gives rise to a red-shift in the fluorescence of an adsorbed molecule and also screens the interactions between neighbouring transition dipole moments; both these effects depend on the refractive index of the substrate. |
| first_indexed | 2025-11-14T20:26:31Z |
| format | Article |
| id | nottingham-53030 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:26:31Z |
| publishDate | 2018 |
| publisher | American Institute of Physics |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-530302020-05-04T19:46:27Z https://eprints.nottingham.ac.uk/53030/ Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers Kerfoot, James Korolkov, Vladimir V. Nizovtsev, Anton S. Jones, Ryan Taniguchi, Takashi Watanabe, Kenji Lesanovsky, Igor Olmos, Beatriz Besley, Nicholas A. Besley, Elena Beton, Peter H. We have investigated the influence of the substrate on the fluorescence of adsorbed organic molecules. Monolayer films of perylene-3,4,9,10-tetracarboxylic-3,4,9,10-diimide (PTCDI), a supramolecular network formed from PTCDI and melamine, and perylene-3,4,9,10-tetracarboxylic-3,4,9,10-dianhydride (PTCDA) have been deposited on hexagonal boron nitride (hBN). The principal peaks in the fluorescence spectra of these films were red-shifted by up to 0.37 eV relative to published measurements for molecules in helium droplets. Smaller shifts (~0.03 eV) arising from interactions between neighbouring molecules are investigated by comparing the fluorescence of distinct arrangements of PTCDI, which are templated by supramolecular self-assembly and determined with molecular resolution using atomic force microscopy under ambient conditions. We compare our experimental results with red-shifts calculated using a combination of a perturbative model and density functional theory which account for, respectively, resonant and non-resonant effects of a dielectric hBN substrate. We show that the substrate gives rise to a red-shift in the fluorescence of an adsorbed molecule and also screens the interactions between neighbouring transition dipole moments; both these effects depend on the refractive index of the substrate. American Institute of Physics 2018-07-17 Article PeerReviewed Kerfoot, James, Korolkov, Vladimir V., Nizovtsev, Anton S., Jones, Ryan, Taniguchi, Takashi, Watanabe, Kenji, Lesanovsky, Igor, Olmos, Beatriz, Besley, Nicholas A., Besley, Elena and Beton, Peter H. (2018) Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers. Journal of Chemical Physics . ISSN 1089-7690 (In Press) |
| spellingShingle | Kerfoot, James Korolkov, Vladimir V. Nizovtsev, Anton S. Jones, Ryan Taniguchi, Takashi Watanabe, Kenji Lesanovsky, Igor Olmos, Beatriz Besley, Nicholas A. Besley, Elena Beton, Peter H. Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers |
| title | Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers |
| title_full | Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers |
| title_fullStr | Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers |
| title_full_unstemmed | Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers |
| title_short | Substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers |
| title_sort | substrate-induced shifts and screening in the fluorescence spectra of supramolecular adsorbed organic monolayers |
| url | https://eprints.nottingham.ac.uk/53030/ |