Supramolecular Engineering of Narrow Absorption Bands by Exciton Coupling in Pristine and Mixed Solid-State Dye Aggregates.
| Title: | Supramolecular Engineering of Narrow Absorption Bands by Exciton Coupling in Pristine and Mixed Solid-State Dye Aggregates. |
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| Authors: | Schembri T; Universität Würzburg, Institut für Organische Chemie, Am Hubland, Würzburg 97074, Germany.; Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, Würzburg 97074, Germany.; Albert J; Universität Würzburg, Institut für Organische Chemie, Am Hubland, Würzburg 97074, Germany.; Hebling H; Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, Würzburg 97074, Germany.; Stepanenko V; Universität Würzburg, Institut für Organische Chemie, Am Hubland, Würzburg 97074, Germany.; Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, Würzburg 97074, Germany.; Anhalt O; Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, Würzburg 97074, Germany.; Shoyama K; Universität Würzburg, Institut für Organische Chemie, Am Hubland, Würzburg 97074, Germany.; Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, Würzburg 97074, Germany.; Stolte M; Universität Würzburg, Institut für Organische Chemie, Am Hubland, Würzburg 97074, Germany.; Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, Würzburg 97074, Germany.; Würthner F; Universität Würzburg, Institut für Organische Chemie, Am Hubland, Würzburg 97074, Germany.; Universität Würzburg, Center for Nanosystems Chemistry (CNC), Theodor-Boveri-Weg, Würzburg 97074, Germany. |
| Source: | ACS central science [ACS Cent Sci] 2025 Mar 14; Vol. 11 (3), pp. 452-464. Date of Electronic Publication: 2025 Mar 14 (Print Publication: 2025). |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: ACS Publications Country of Publication: United States NLM ID: 101660035 Publication Model: eCollection Cited Medium: Print ISSN: 2374-7943 (Print) Linking ISSN: 23747943 NLM ISO Abbreviation: ACS Cent Sci Subsets: PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Washington DC : ACS Publications, [2015]- |
| Abstract: | Tunability of functional properties in a continuous manner is desired but challenging to accomplish for organic solid-state materials. Herein, we describe a method for tuning optoelectronic properties of solid-state aggregates with narrow absorption bands. First, we systematically shift the absorption maxima of highly dipolar merocyanine dyes in solution by chemical alterations of their chromophore cores. This leaves their solid-state packing arrangements unchanged, affording similar J- and H-coupled aggregate absorption bands at different wavelengths. Next, mixing these isostructural dyes leads to a spectral fine-tuning of the mixed layers, which could be characterized as crystalline organic solid solutions and utilized in narrowband color-selective organic photodiodes. Finally, we devise a semiempirical model, which explains the observed spectral tuning in terms of the molecular exciton theory. Thus, we demonstrate narrowband absorbing solid-state aggregates spanning the wavelength range of 437-760 nm, whose absorption can be fine-tuned over 40% of the visible light range.; (© 2025 The Authors. Published by American Chemical Society.) |
| Competing Interests: | The authors declare no competing financial interest. |
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| Entry Date(s): | Date Created: 20250331 Latest Revision: 20250402 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC11950854 |
| DOI: | 10.1021/acscentsci.4c02157 |
| PMID: | 40161960 |
| Database: | MEDLINE |
Journal Article