镱
光子上转换
光致发光
铬
材料科学
发光
磷光
光化学
背景(考古学)
分子
激发
镧系元素
离子
兴奋剂
无机化学
光电子学
化学
荧光
光学
物理
冶金
有机化学
古生物学
生物
量子力学
作者
Jens Kalmbach,Cui Wang,Yi You,Christoph Förster,Hartmut Schubert,Katja Heinze,Ute Resch‐Genger,Michael Seitz
标识
DOI:10.1002/anie.202007200
摘要
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 2 E/ 2 T 1 phosphorescence at approximately 775 nm after excitation of the ytterbium band 2 F 7/2 → 2 F 5/2 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.
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