Synthesis and photoluminescence study of two new complexes [Sm(hfaa)3(impy)2] and [Eu(hfaa)3(impy)2] and their PMMA based hybrid films

Dar, Wakeel Ahmed; Ganaie, Aabid Bashir; Iftikhar, K.

doi:10.1016/j.jlumin.2018.05.032

Cited by 67 publications

(18 citation statements)

References 98 publications

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“…CIE (Commission International de I'Elclairge) color coordinates of all S1-S6 complexes are found to be 0.5542, 0.4447 (S1), 0.5560, 0.4430 (S2), 0.5702, 0.4288 (S3), 0.5521, 0.4468 (S4), 0.5558, 0.4432 (S5) and 0.5573, 0.4417 (S6) respectively, enlisted in Table 4. CIE color triangle (Figure 7), displays the observed color coordinates of all S1-S6 complexes, which authenticate the effective sensitization of Sm 3+ ions by the L in reddish-orange zone [39]. Amazingly, these bright reddish-orange colors of complexes can be explored in color indicator diodes.…”

Section: Colorimetric Analysismentioning

confidence: 69%

Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

et al. 2022

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Six crimson samarium (III) complexes based on β-ketone carboxylic acid and ancillary ligands were synthesized by adopting grinding technique. All synthesized complexes were investigated via employing elemental analysis, infrared, UV-Vis, NMR, TG/DTG and photoluminescence studies. Optical properties of these photostimulated samarium (III) complexes exhibit reddish-orange luminescence due to 4 G 5/2 → 6 H 7/2 transition at 606 nm of samarium (III) ions.Further, energy band gap, color purity, CIE color coordinates, CCT and quantum yield of all complexes were determined accurately. Replacement of water molecules by ancillary ligands enriched the complexes (S2-S6) with decay time, quantum yield, luminescence, energy band gap and biological properties than parent complex (S1). Interestingly, these e cient properties of complexes may nd their applications in optoelectronic and lighting systems. In addition to these the antioxidant and antimicrobial assays were also investigated to explore the application in biological assays.

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Section: Colorimetric Analysismentioning

confidence: 69%

Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

et al. 2022

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“…Covalent organic frameworks (COFs) constructed with organic building units via strong covalent bonds represent an exciting new type of porous organic material. The COF materials have been showing big promise in many applications such as chemical carriers, catalysis, adsorbents, and sensors due to the well-defined crystalline porous structures together with tailored functionalities. − Recently, the development of COF materials for luminescent sensors has, in particular, attracted attention, , due to their long luminescent lifetime, high quantum efficiency, as well as the signal amplification effect. − The unique luminescent properties and structural stabilities of COFs enable them to have important roles for the detection of electron-rich or electron-deficient metal ions, anions, and explosive molecules. , However, COF-based sensors for the detection of electron-“neutral” organic compounds such as volatile acetone have never been achieved. Considering both merits of COFs and lanthanide IL complexes, it could be important to explore their synergetic functionalities for sensing applications.…”

Section: Introductionmentioning

confidence: 99%

Europium Ionic Liquid Grafted Covalent Organic Framework with Dual Luminescence Emissions as Sensitive and Selective Acetone Sensor

Zuo

Liu

Liao

2019

ACS Appl. Mater. Interfaces

127

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Chronical exposure to volatile acetone could damage to the liver and kidney or nerve, and cause inflammation. Design of novel materials for the sensitive and selective detection of acetone is of great importance. We report on a europium (Eu)-containing covalent organic framework (DhaTab-COF-EuIL) synthesized via a Schiff-base reaction between 2,5-dihydroxyterephthalaldehyde (Dha) and 1,3,5-tris(4-aminophenyl)benzene (Tab) followed by an ionic liquid (IL)-modification and then ion displacement. The resulting DhaTab-COF-EuIL is microporous and crystalline, and not only presents unique dual luminescence emissions of Eu3+ and COF material, but also exhibits remarkable luminescence quenching toward acetone. Especially, the DhaTab-COF-EuIL could be a novel luminescent sensor, displaying high sensitivity and selectivity for the detection of volatile acetone with a limit of detection down to 1%.

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“…The preparation bulk Sm complex was the same as that in the analogous Sm complex 11) . All starting materials, i.e.…”

Section: Preparation Of the Bulk [Sm(pic)2(h2o)(eo4)](pic) H2o Complexmentioning

confidence: 99%

“…Although samarium ion, Sm 3+ , generally has a low fluorescence [3][4][5] , it is an interesting lanthanide emitter because of its bright-orange color. Therefore, Sm 3+ complexes and their composites have been investigated for applications in optical, lighting, fiber optic, and gas sensor [6][7][8][9][10][11][12][13][14][15] . The Sm 3+ complexes display very large Stokes shift between the maxima of its absorption and emission spectrum and narrow bandwidth of emitted light 12) .…”

Section: Introductionmentioning

confidence: 99%

“…Thus, mixing the polymers with lanthanides in the formation of materials or composite can enhance the optical properties 18) . The role of the PMMA polymer in composites is to enhance the luminescence via preventing quenching process 11,13,[17][18][19] . PMMA also can increase the electrical conductivity, photoconductivity, photo-induced charge transfer, photoluminescent, mechanical and magnetic properties of the composites 20) .…”

Section: Introductionmentioning

confidence: 99%

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Fluorescence Enhancement of Samarium Picrate Tetraethylene Glycol Micro-sized Complex Doped in Poly (methyl methacrylate)

Kusrini¹,

Hidayati

Mamat

et al. 2020

Evergreen

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Micro-sized complex of [Sm(Pic)2(H2O)(EO4)](Pic).H2O (where EO4 = tetraethylene glycol, Pic = picrate anion) and its micro-sized polymethyl methacrylate (PMMA) composite have been synthesized by one step (in-situ method) and three steps (reprecipitation-evaporation) methods. Fluorescence intensity of ion Sm 3+ ion in the Sm-Pic-EO4/PMMA micro-sized composite is higher than that in the Sm-Pic-EO4 micro-sized complex. The composite is potential to be applied as a luminescent center in organic light emitting devices for bright-orange emission coming from Sm 3+ ions. This micro-sized rare earth metal and its composite can be used for engineering application.

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Synthesis and photoluminescence study of two new complexes [Sm(hfaa)3(impy)2] and [Eu(hfaa)3(impy)2] and their PMMA based hybrid films

Cited by 67 publications

References 98 publications

Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

Applicability of Reddish-Orange Light Emitting Samarium (III) Complexes for Biomedical and Multifunctional Optoelectronic Devices

Europium Ionic Liquid Grafted Covalent Organic Framework with Dual Luminescence Emissions as Sensitive and Selective Acetone Sensor

Fluorescence Enhancement of Samarium Picrate Tetraethylene Glycol Micro-sized Complex Doped in Poly (methyl methacrylate)

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