Spatially Resolved Click Patterning of Dyes on Graphene for 2D Hybrids with Regiotunable Fluorescence

Al-Fogra S, Yang B, Morozov B, Bozinovic F, Mack E, Feng S, Kataev E, Jux N, Guldi DM, Weber HB, Hauke F, Hirsch A, Wei T (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Advanced Functional Materials Wiley-VCH Verlag

Book Volume: 36

Article Number: e17138

Journal Issue: 14

DOI: 10.1002/adfm.202517138

Abstract

Creating well-defined and spatially resolved fluorescent graphene-dye hybrid structures has long been a challenge, particularly in maintaining the dye's emission properties and preventing fluorescence quenching. A successful strategy is presented for covalent patterning of fluorescent dye moieties onto a graphene surface, enabling unprecedented precision in fluorescence modulation. This strategy combines lithography-assisted reductive patterning to introduce ethynylbenzene anchors with a subsequent alkyne-azide cycloaddition (copper(I)-catalyzed click) reaction. The unique connection helps prevent the potential quenching of the dye. Comprehensive spectroscopic and microscopic analyses confirmed the formation of highly ordered and hierarchically organized hybrid nanoarchitectures with covalently integrated fluorescent dye units. This breakthrough overcomes the limitations of disordered and poorly defined structures in conventional graphene-dye hybrids. The simplicity and versatility of this method allow for patterning a wide range of fluorescent dyes, opening up new possibilities for nanoarchitectures with potential uses in areas such as data storage, OLEDs, and anti-counterfeiting.

Authors with CRIS profile

Sabrin Al-Fogra Sonderforschungsbereich 953/3 Synthetische Kohlenstoffallotrope Bowen Yang Lehrstuhl für Organische Chemie II Boris Morozov Lehrstuhl für Organische Chemie II Filip Bozinovic Lehrstuhl für Organische Chemie II Elena Mack Graduiertenkolleg 2861/1 - Planare Kohlenstoffgitter Sijia Feng Chair of Applied Physics (LAP) Evgeny Kataev Department Chemie und Pharmazie Norbert Jux Interdisziplinäres Zentrum für Molekulare Materialien (ICMM) Dirk Michael Guldi Lehrstuhl für Physikalische Chemie I Heiko Weber Chair of Applied Physics (LAP) Frank Hauke Lehrstuhl für Organische Chemie II Andreas Hirsch Lehrstuhl für Organische Chemie II

Involved external institutions

University of Science and Technology of China (USTC) CN China (CN)

How to cite

APA:

Al-Fogra, S., Yang, B., Morozov, B., Bozinovic, F., Mack, E., Feng, S.,... Wei, T. (2025). Spatially Resolved Click Patterning of Dyes on Graphene for 2D Hybrids with Regiotunable Fluorescence. Advanced Functional Materials, 36(14). https://doi.org/10.1002/adfm.202517138

MLA:

Al-Fogra, Sabrin, et al. "Spatially Resolved Click Patterning of Dyes on Graphene for 2D Hybrids with Regiotunable Fluorescence." Advanced Functional Materials 36.14 (2025).

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