A Highly Fluorescent Dinuclear Aluminium Complex with Near-Unity Quantum Yield**

Portwich FL, Carstensen Y, Dasgupta A, Kupfer S, Wyrwa R, Goerls H, Eggeling C, Dietzek B, Gräfe S, Waechtler M, Kretschmer R (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Angewandte Chemie International Edition Wiley

Book Volume: 61

Article Number: e202117499

Journal Issue: 17

DOI: 10.1002/anie.202117499

Abstract

The high natural abundance of aluminium makes the respective fluorophores attractive for various optical applications, but photoluminescence quantum yields above 0.7 have yet not been reported for solutions of aluminium complexes. In this contribution, a dinuclear aluminium(III) complex featuring enhanced photoluminescence properties is described. Its facile one-pot synthesis originates from a readily available precursor and trimethyl aluminium. In solution, the complex exhibits an unprecedented photoluminescence quantum yield near unity (Φabsolute 1.0±0.1) and an excited-state lifetime of 2.3 ns. In the solid state, J-aggregation and aggregation-caused quenching are noted, but still quantum yields of 0.6 are observed. Embedding the complex in electrospun non-woven fabrics yields a highly fluorescent fleece possessing a quantum yield of 0.9±0.04.

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE) Leibniz-Institut für Photonische Technologien e.V. DE Germany (DE) INNOVENT e. V. DE Germany (DE)

How to cite

APA:

Portwich, F.L., Carstensen, Y., Dasgupta, A., Kupfer, S., Wyrwa, R., Goerls, H.,... Kretschmer, R. (2022). A Highly Fluorescent Dinuclear Aluminium Complex with Near-Unity Quantum Yield**. Angewandte Chemie International Edition, 61(17). https://doi.org/10.1002/anie.202117499

MLA:

Portwich, Flavio L., et al. "A Highly Fluorescent Dinuclear Aluminium Complex with Near-Unity Quantum Yield**." Angewandte Chemie International Edition 61.17 (2022).

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