Impact of the experimental bandwidth on circularly polarized luminescence measurements of lanthanide complexes: the case of erbium(III) - Archive ouverte HAL Access content directly
Journal Articles Journal of Materials Chemistry C Year : 2024

Impact of the experimental bandwidth on circularly polarized luminescence measurements of lanthanide complexes: the case of erbium(III)

Annika Sickinger
Yannick Guyot
Laure Guy
Olivier Cador
Olivier Maury
Stephan Guy

Abstract

This article outlines the synthesis and comprehensive characterization of a pair of Er(III) enantiomers with controlled helicity. These complexes exhibit a near-infrared circularly polarized luminescence (NIR-CPL) signature with high glum values of ± 0.66 at 1519 nm at room temperature. However, due to a large number of potential transitions at this temperature owed to the crystal field splitting, the CPL pattern likely results from overlapping of many positive and negative contributions. This study explores how reducing the effective bandwidth affects the CPL spectral analysis. Practical insights are provided for measuring CPL spectra, highlighting the importance of resolving peak positions with opposite signs to accurately determine glum values.
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Year Month Jours
Avant la publication
Thursday, August 29, 2024
Embargoed file
Thursday, August 29, 2024
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hal-04516623 , version 1 (29-03-2024)

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Attribution - NonCommercial

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Annika Sickinger, Bruno Baguenard, Amina Bensalah-Ledoux, Yannick Guyot, Laure Guy, et al.. Impact of the experimental bandwidth on circularly polarized luminescence measurements of lanthanide complexes: the case of erbium(III). Journal of Materials Chemistry C, 2024, 12 (12), pp.4253-4260. ⟨10.1039/d3tc04717b⟩. ⟨hal-04516623⟩
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