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RESEARCH PRODUCT
Near-IR to Near-IR Upconversion Luminescence in Molecular Chromium Ytterbium Salts
Michael SeitzChristoph FörsterUte Resch-gengerKatja HeinzeYi YouJens KalmbachCui WangCui WangHartmut Schubertsubject
YtterbiumPhotoluminescenceMaterials sciencechemistry.chemical_elementContext (language use)Crystal structure010402 general chemistryPhotochemistry01 natural sciencesCatalysisChromiumluminescenceResearch Articlesupconversionenergy transfer010405 organic chemistryytterbiumGeneral Chemistry540Photon upconversion0104 chemical scienceschemistrychromiumPhosphorescenceLuminescence500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete WissenschaftenResearch Articledescription
Abstract Upconversion photoluminescence in hetero‐oligonuclear metal complex architectures featuring organic ligands is an interesting but still rarely observed phenomenon, despite its great potential from a basic research and application perspective. In this context, a new photonic material consisting of molecular chromium(III) and ytterbium(III) complex ions was developed that exhibits excitation‐power density‐dependent cooperative sensitization of the chromium‐centered 2E/2T1 phosphorescence at approximately 775 nm after excitation of the ytterbium band 2F7/2→2F5/2 at approximately 980 nm in the solid state at ambient temperature. The upconversion process is insensitive to atmospheric oxygen and can be observed in the presence of water molecules in the crystal lattice.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-01-01 |