Synthesis and Near Infrared Luminescence Properties of a Series of Lanthanide Complexes with POSS Modified Ligands

A polyhedral oligomeric silsesquioxanes (POSS) modified 8-hydroxyquinoline derivative (denoted as Q-POSS) was synthesized and used as a ligand to coordinate with lanthanide ions to obtain a series of lanthanide complexes Ln(Q-POSS)3 (Ln = Er3+, Yb3+, Nd3+). The as-prepared lanthanide complexes have been characterized by FT-IR, UV–Vis, and elemental analysis. All these complexes showed the characteristic near-infrared (NIR) luminescence originated from the corresponding lanthanide ions under excitation. Compared with the unmodified counterparts LnQ3 (HQ = 8-hydroxyquinoline), the Ln(Q-POSS)3 complexes showed obviously increased emission intensity, which was ascribed mainly to the steric-hindrance effects of the POSS moiety in the ligands. It is believed that the POSS group could suppress undesired excimer formation and intermolecular aggregation, thus decreasing the concentration quenching effect of the corresponding lanthanide complexes.

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Quenching effect of C-H bond in long lived NIR luminescent erbium complexes

MRS Proceedings ◽

10.1557/opl.2013.767 ◽

2013 ◽

Vol 1571 ◽

Author(s):

Laurent Divay ◽

Christophe Galindo ◽

Françoise Soyer ◽

Evelyne Chastaing ◽

Renato Bisaro ◽

...

Keyword(s):

Excited State ◽

Phenyl Ring ◽

Near Infrared ◽

Organic Ligand ◽

Excited State Lifetime ◽

Quenching Effect ◽

Infrared Luminescence ◽

Powder Samples ◽

Order Of Magnitude ◽

Erbium Ion

AbstractErbium excited state deactivation is studied for two fluorinated complexes based on N-(P,P-ditetrafluorophosphinoyl-P,P-ditetrafluorophenyl phosphinimidates and N-(P,P-dipentafluoro phosphinoyl)-P,P-dipentafluorophenyl phosphinimidates ligands. We show that the substitution of a fluorine atom in para-position by an hydrogen atom on each phenyl ring of the perfluorinated organic ligand results in a decrease in near infrared luminescence lifetimes from 800 µs to 70 µs when measured under vacuum on sublimated powder samples. These experiments show that the introduction of C-H bonds, although outside the first coordination sphere of the erbium ion, can still induce a one order of magnitude decrease in its excited state lifetime. The found lifetime however is still longer than most reported partially fluorinated complexes, which opens the way for new functionalized complexes.

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Lanthanide Nd ion-doped two-dimensional In2Se3 nanosheets with near-infrared luminescence property

Nanophotonics ◽

10.1515/nanoph-2019-0450 ◽

2020 ◽

Vol 9 (8) ◽

pp. 2407-2414 ◽

Cited By ~ 1

Author(s):

Yuan Liu ◽

Gongxun Bai ◽

Li Jiang ◽

Youjie Hua ◽

Liang Chen ◽

...

Keyword(s):

Near Infrared ◽

Solid Phase ◽

2D Materials ◽

Lanthanide Ions ◽

Optical Measurements ◽

Emission Region ◽

Two Dimensional ◽

Step Method ◽

Infrared Luminescence ◽

Photoluminescence Mechanism

AbstractUltrathin two-dimensional (2D) materials have drawn great attention in recent years due to their promising applications in biomedicine and atomically optoelectronic devices. In this work, we have fabricated a 2D In2Se3 nanosheet doped with Nd3+ ions via the two-step method of solid phase synthesis and liquid exfoliation. Owing to the special inner 4f-4f energy level transitions, lanthanide ions can emit photons with almost the same energy in different environments. Here, a stable near-infrared luminescence from Nd3+-doped 2D In2Se3 nanosheets has been realized, which includes emission bands around 910, 1057, and 1324 nm. The doping of Nd3+ ions extends the emission region of In2Se3 nanosheets. Moreover, the photoluminescence mechanism of Nd3+ ions was investigated through a series of optical measurements. This work not only provides a reliable method to fabricate lanthanide ion-doped 2D materials but also possesses a great significance for luminescence study of lanthanide ions in the 2D matrix.

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Lanthanide complexes-functionalized ordered mesoporous TiO2: Multicolor emission (visible and near-infrared luminescence) based on visible-light sensitization

Journal of Rare Earths ◽

10.1016/j.jre.2018.03.015 ◽

2018 ◽

Vol 36 (9) ◽

pp. 939-945 ◽

Cited By ~ 5

Author(s):

Zhijuan Wang ◽

Song Dang ◽

Shu'na Zhao ◽

Lining Sun

Keyword(s):

Visible Light ◽

Lanthanide Complexes ◽

Near Infrared ◽

Mesoporous Tio2 ◽

Infrared Luminescence ◽

Ordered Mesoporous

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Making sense of Lanthanide Luminescence

Science Progress ◽

10.3184/003685005783238435 ◽

2005 ◽

Vol 88 (2) ◽

pp. 101-131 ◽

Cited By ~ 135

Author(s):

Martinus H.V. Werts

Keyword(s):

Lanthanide Complexes ◽

Near Infrared ◽

Spectroscopic Studies ◽

Medical Diagnostics ◽

Lanthanide Ions ◽

Luminescent Materials ◽

Making Sense ◽

Trivalent Lanthanide ◽

Recent Developments ◽

History Of

The luminescence of trivalent lanthanide ions has found applications in lighting, lasers, optical telecommunications, medical diagnostics, and various other fields. This introductory review presents the basics of organic and inorganic luminescent materials containing lanthanide ions, their applications, and some recent developments. After a brief history of the discovery, purification and early spectroscopic studies of the lanthanides, the radiative and nonradiative transitions of the 4f electrons in lanthanide ions are discussed. Lanthanide-doped phosphors, glasses and crystals as well as luminescent lanthanide complexes with organic ligands receive attention with respect to their preparation and their applications. Finally, two recent developments in the field of luminescent materials are addressed: near-infrared luminescent lanthanide complexes and lanthanide-doped nanoparticles.

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Ligand-Centered Near-Infrared Luminescence from Lanthanide Complexes with Chelating Nitronyl Nitroxide Free Radicals

Inorganic Chemistry ◽

10.1021/ic0004941 ◽

2000 ◽

Vol 39 (17) ◽

pp. 3740-3741 ◽

Cited By ~ 40

Author(s):

Christophe Lescop ◽

Dominique Luneau ◽

Guillaume Bussière ◽

Myriam Triest ◽

Christian Reber

Keyword(s):

Free Radicals ◽

Lanthanide Complexes ◽

Near Infrared ◽

Nitronyl Nitroxide ◽

Infrared Luminescence

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Light modulation (vis-NIR region) based on lanthanide complex-functionalized carbon dots

RSC Advances ◽

10.1039/c6ra06709c ◽

2016 ◽

Vol 6 (53) ◽

pp. 47427-47433 ◽

Cited By ~ 12

Author(s):

Jinghua Liu ◽

Xiaoqian Ge ◽

Lining Sun ◽

Ruoyan Wei ◽

Jinliang Liu ◽

...

Keyword(s):

Visible Light ◽

Carbon Dots ◽

Lanthanide Complexes ◽

Near Infrared ◽

Lanthanide Complex ◽

Light Modulation ◽

Infrared Luminescence ◽

Light Excitation

Based on the carbon dots synthesized by using l-lysine, a series of lanthanide complexes-functionalized carbon dots were synthesized, which show multicolor visible and near-infrared luminescence upon visible-light excitation.

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Near-infrared luminescence and magnetism of dinuclear lanthanide complexes constructed from a schiff-base and different β-diketonate coligands

Inorganica Chimica Acta ◽

10.1016/j.ica.2021.120497 ◽

2021 ◽

pp. 120497

Author(s):

Jiao Yin ◽

Xue-Mei Zhang ◽

Xiao-Min Zhang ◽

Hong-Ling Gao ◽

Jian-Zhong Cui

Keyword(s):

Schiff Base ◽

Lanthanide Complexes ◽

Near Infrared ◽

Infrared Luminescence

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Near-infrared luminescence and SMM behaviors of a family of dinuclear lanthanide 8-quinolinolate complexes

RSC Advances ◽

10.1039/c6ra02656g ◽

2016 ◽

Vol 6 (41) ◽

pp. 34165-34174 ◽

Cited By ~ 22

Author(s):

Hai-Yun Shen ◽

Wen-Min Wang ◽

Hong-Ling Gao ◽

Jian-Zhong Cui

Keyword(s):

Lanthanide Complexes ◽

Near Infrared ◽

Luminescence Properties ◽

Infrared Luminescence

Herein we report the near-infrared luminescence properties and SMM behaviors of five new lanthanide complexes based on 8-hydroxyquinoline and dibenzoylmethanate ligands.

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