OPTICAL MASER ACTION IN An Eu+3-CONTAINING ORGANIC MATRIX

Wolff, Niklas; Pressley, R. J.

doi:10.1063/1.1753821

Cited by 130 publications

(48 citation statements)

References 3 publications

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“…18 The first experiments on optical materials based on PMMA doped with b-diketonate complexes go back to the 1960's when the lanthanide b-diketonates have been tested as active components in chelate lasers. For instance, Wolff and Pressley (1963) doped europium(III) tris(2-thenoyltrifluoroacetonate) into PMMA and observed laser action in this material. 19 Several other authors have investigated the spectroscopic and photophysical properties of lanthanide(III) complexes in PMMA.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, Wolff and Pressley (1963) doped europium(III) tris(2-thenoyltrifluoroacetonate) into PMMA and observed laser action in this material. 19 Several other authors have investigated the spectroscopic and photophysical properties of lanthanide(III) complexes in PMMA. [20][21][22][23][24][25] A disadvantage of PMMA films or sheets is their brittleness, due to the high glass transition temperature of this polymer (around 100 1C).…”

Section: Introductionmentioning

confidence: 99%

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Ionic liquid as plasticizer for europium(iii)-doped luminescent poly(methyl methacrylate) films

Lunstroot

Driesen

Nockemann

et al. 2010

Phys. Chem. Chem. Phys.

148

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Flexible luminescent polymer films were obtained by doping europium(III) complexes in blends of poly(methyl methacrylate) (PMMA) and the ionic liquid 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, [C 6 3 ], where nta is 2-naphthoyltrifluoroacetonate, tta is 2-thenoyltrifluoroacetonate, phen is 1,10-phenanthroline, dpa is 2,6-pyridinedicarboxylate (dipicolinate) and choline is the 2-hydroxyethyltrimethyl ammonium cation. Bright red photoluminescence was observed for all the films upon irradiation with ultraviolet radiation. The luminescent films have been investigated by high-resolution steady-state luminescence spectroscopy and by time-resolved measurements. The polymer films doped with b-diketonate complexes are characterized by a very intense 5 D 0 -7 F 2 transition (up to 15 times more intense than the 5 D 0 -7 F 1 ) transition, whereas a marked feature of the PMMA films doped with [choline] 3 [Eu(dpa) 3 ] is the long lifetime of the 5 D 0 excited state (1.8 ms).

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ionic liquid as plasticizer for europium(iii)-doped luminescent poly(methyl methacrylate) films

Lunstroot

Driesen

Nockemann

et al. 2010

Phys. Chem. Chem. Phys.

148

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“…10,11 To explore the potential of the complexes for photonic applications (light-converting devices), [12][13][14][15][16][17] it is useful to incorporate the complexes in an inert host matrix. [18][19][20][21][22][23][24][25][26][27] A problem often encountered upon embedding of the luminescent complexes in the host matrix is the nonhomogeneous distribution of the compounds, 28,29 which leads to clustering of lanthanide ions and hence a decrease of the luminescence intensity. 30,31 A more homogeneous distribution of the lanthanide complex in the host matrix can be achieved by covalent coupling of the complexes to this host matrix.…”

Section: Introductionmentioning

confidence: 99%

Thin Films of Highly Luminescent Lanthanide Complexes Covalently Linked to an Organic−Inorganic Hybrid Material via 2-Substituted Imidazo[4,5-f]-1,10-phenanthroline Groups

et al. 2005

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A homogeneous distribution of luminescent lanthanide(III) 2-thenoyltrifluoroacetonate complexes (Ln ) Pr, Nd, Sm, Eu, Dy, Ho, Er, Tm, Yb) in an organic-inorganic hybrid material was obtained by grafting the complexes to the solid matrix via 2-substituted imidazo[4,5-f]-1,10-phenanthroline moieties. Thin films of the silica hybrid material were prepared by the sol-gel method and by spin-coating of the gelating solution on glass slides or on oxidized silicon wafers. The thickness of the thin films was determined by scanning electron microscopy (SEM). High-resolution luminescence spectra of the lanthanide complexes were recorded, and the luminescence decay times were measured. The luminescence quantum yields of europium(III)-doped thin films exposed to different drying conditions were determined by using an integrating sphere.

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“…[ 5 ] Indeed, studies involving the doping of polymethylmethacrylate (PMMA) date all the way back to the 1960s, in a study of lanthanide β -diketonates as active components for lasers. [ 6 ] The incorporation of purely inorganic luminescent materials into polymer matrices has also been investigated. [ 3 , 7-11 ] This presents an even more interesting prospect; combining the advantages of both polymers (good processability and mechanical properties) and inorganic materials (high luminescence effi ciency and long-term chemical stability).…”

Section: Introductionmentioning

confidence: 99%

One‐Pot Synthesis of Luminescent Polymer‐Nanoparticle Composites from Task‐Specific Ionic Liquids

Campbell

Lorbeer

Cybińska

et al. 2013

Adv Funct Materials

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A multifunctional polymerizable ionic liquid, diallyldimethylammonium tetrafluoroborate (DADMA BF4), is used in a one‐pot synthesis of novel luminescent polymer‐nanoparticle composites. First, small monodisperse lanthanide fluoride nanoparticles are formed by microwave irradiation in the presence of Ln(OAc)3·xH2O (Ln = Gd, Eu, Tb; OAc = acetate) in the ionic liquid. The nanoparticles can be precipitated for structural characterization or kept in the solution, which yields after irradition by high intensity UV light colorless, processable polymer materials with good photophysical properties. Both green‐emitting Tb‐containing and red‐emitting Eu‐containing IL‐ polymers are described.

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OPTICAL MASER ACTION IN An Eu+3-CONTAINING ORGANIC MATRIX

Cited by 130 publications

References 3 publications

Ionic liquid as plasticizer for europium(iii)-doped luminescent poly(methyl methacrylate) films

Ionic liquid as plasticizer for europium(iii)-doped luminescent poly(methyl methacrylate) films

Thin Films of Highly Luminescent Lanthanide Complexes Covalently Linked to an Organic−Inorganic Hybrid Material via 2-Substituted Imidazo[4,5-f]-1,10-phenanthroline Groups

One‐Pot Synthesis of Luminescent Polymer‐Nanoparticle Composites from Task‐Specific Ionic Liquids

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