Work

Iron(III) Complexes with Luminescence Lifetimes of up to 100 ns to Enhance Upconversion and Photocatalysis

Year: 2025

Type: article

Abstract: Iron is the most abundant transition metal element and would be the ideal replacement for noble metals in many applications that rely on luminescent and long-lived electronically excited states. We show that efficient reversible energy transfer between doublet excited states of iron complexes and triplet excited states on organic ligands improves energy storage by up to 350-fold. As a result, luminescence lifetimes of up to 100 ns are achieved, the upconversion from red to blue light becomes 68 times more efficient and the yield of benchmark photoredox reactions is significantly improved. These advances make iron coordination compounds more promising candidates for applications in lighting, solar energy conversion and photocatalysis.

Source: Journal of the American Chemical Society

DOI: 10.1021/jacs.4c18603

Authors: Joël Wellauer, Björn Pfund, Isabelle Becker, Franc Meyer, Alessandro Prescimone, Oliver S. Wenger

Institutions: University of Basel, University of Göttingen

Language: English

Topic: Photochemistry and Electron Transfer Studies

Subfield: Physical and Theoretical Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,500

Funders: Deutsche Forschungsgemeinschaft, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Niedersächsisches Ministerium für Wissenschaft und Kultur