Acetylsalicylic acid sensitized lasing luminescence of terbium complex in PVA: A case of energy avalanche via 1, 10-Phenanthroline

Kumar, Brijesh; Kaur, Gagandeep; Rai, S.B.

doi:10.1016/j.jphotochem.2016.09.018

Cited by 10 publications

(14 citation statements)

References 19 publications

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“…6 While S 1 and T 1 of ASA transfers its energy to Tb 3+ ion in case of TAP complex. 27 The energy transfer mechanism in HC are different from both in which singlet state (S 1 ) of TAP transfers its energy to singlet state (S 1 ) of TTA and 5 D 4 state of Tb 3+ also transfers its energy to 5 D 1 energy state of Eu 3+ . This mechanism shows the transfer of energy from Tb 3+ to Eu 3+ .…”

Section: B Energy Transfer Mechanism and Decay Dynamicsmentioning

confidence: 97%

“…[24][25][26][27] In our previous report we have demonstrated the multi-functionality of red emitting Eu(TTA) 3 Phen (ETP) complexes, in which TTA molecules absorbed the UV-A as well as UV-B part of the radiation and transfer its energy to central Eu 3+ ion, whereas Phen protect it from the interaction with water molecules and thus provides stability to the complex. 6,28 Recently, Kumar et al have reported a strong green emitting Tb(ASA) 3 Phen (TAP) complex, in which acetylsalicylic acid (ASA) serves as the UV harvesting ligands.…”

Section: Introductionmentioning

confidence: 99%

“…6,28 Recently, Kumar et al have reported a strong green emitting Tb(ASA) 3 Phen (TAP) complex, in which acetylsalicylic acid (ASA) serves as the UV harvesting ligands. 27 In the present work, a hybrid complex (HC) by the mixing of ETP and TAP complexes has been prepared and their structural and optical properties have been investigated in details. Such a hybrid system combines the properties of both the complexes and offers an efficient energy transfer from Tb 3+ to Eu 3+ ions.…”

Section: Introductionmentioning

confidence: 99%

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Silver nanoparticles embedded hybrid organometallic complexes: Structural interactions, photo-induced energy transfer, plasmonic effect and optical thermometry

2018

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ARTICLES YOU MAY BE INTERESTED INFemtosecond laser-assisted thermal annealing of Ni electrode on SiC substrate AIP Advances 8, 065204 (2018); https://doi.org/10.1063/1.5036804Synthesis and enhanced third-order nonlinear optical effect of ZnSe/graphene composites AIP Advances 8, 065025 (2018); https://doi.org/10.1063/1.5027523The influence of negative pressure during gas extraction in low-permeability coal seams on the effect of gas extraction AIP Advances 8, 065120 (2018) A novel hybrid material comprising of two β-diketonate complexes, Tb(ASA) 3 Phen (TAP) and Eu(TTA) 3 Phen (ETP), has been synthesized and studied its photo-physics, energy transfer and optical thermometry applications. Using XRD and FTIR spectra, it has been demonstrated that both the complexes maintain their core entity and show weak interaction between them in the hybrid complex (HC). The TEM images show the coating of ETP layers over nano-fibrous TAP and further, embedded with Ag nanoparticles over HC. It has been observed that ligands (Phen, TTA as well as ASA) absorb the UV radiation and undergoes single to triplet via intersystem crossing transitions by transferring its excitation energy to central lanthanide ions (Eu 3+ and Tb 3+ ). In this strategy, an efficient energy transfer between two different species i.e. ASA to Tb 3+ (in TAP complex) to Eu +3 ions (of ETP complex) has also been observed. To probe and verify the energy transfer mechanism, life time measurements have been carried out. The life time of Tb 3+ decreases in HC as compared with TAP, whereas the life time of Eu 3+ increases in HC as compared with ETP. The addition of silver nanoparticles (AgNPs) again enhances the fluorescence intensity of Eu 3+ emission band. The prepared HC has further been demonstrated for ambient range temperature (295-365 K) sensing and the sensitivity of the material is found to be 6.8% change in signal per K. The strong optical property and non-toxic nature of this HC is useful in biomedical, bio-imaging and energy harvesting applications. © 2018 Author (s)

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Section: B Energy Transfer Mechanism and Decay Dynamicsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Silver nanoparticles embedded hybrid organometallic complexes: Structural interactions, photo-induced energy transfer, plasmonic effect and optical thermometry

2018

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“…Rare earth organic ligands fall into three major categories: β-diketones [9], organic carboxylic acids [10], and supramolecular macrocycles [11]. Among them, the coordination ability between rare earth ions and organic carboxylic acids is strong because rare earth ions are hard acids, and oxygen atoms in carboxylic acids are hard bases whose coordination is in accordance with the affinity principle of acids and bases [12]. Furthermore, the coordination between carboxylate oxygen ions and lanthanide ions can be of various forms, such as a chelated bidentate, bridged bidentate, and monodentate; as a result, rare earth carboxylic acid complexes have numerous special structures, such as lamellar, catenulate, and reticular, which are relatively stable [13].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of a Novel Terbium Complex Coordinated with 10-Undecenoic Acid for UV-Cured Coatings

Jiao

Zhong

Zhou

et al. 2020

International Journal of Polymer Science

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A UV-cured composite containing a rare earth complex was prepared for this study. First, the photoluminescent terbium complex was synthesized with a long-chain unsaturated fatty acid (10-Undecenoic acid) by a solution precipitation method, resulting in the 10-UA-Tb(III) complex. Its structure was proven by FTIR, elemental analysis, XRD, and TGA. The results indicated that the organic acid ligand successfully coordinated with the Tb 3+ ion and that the complex had a chelate bidentate structure. The emission spectrum of the 10-UA-Tb(III) complex indicated that the complex can emit a bright green light with the unique luminescence of the Tb 3+ ion. Furthermore, the luminescence properties of complexes with different ratios of Tb 3+ and ligand were studied, and the ratio of Tb 3+ and the ligand had an obvious impact on the luminescence intensity of the 10-UA-Tb(III) complex. Subsequently, the prepared rare earth complex was doped into a UV-cured coating in different proportions to obtain a UV-cured composite. The morphology of the rare earth UV-cured composite was observed by SEM. The images showed that the rare earth complex was dispersed uniformly in the polymer matrix. Moreover, the composites could emit fluorescence. Additionally, it has good thermal stability and compatibility with the resin. Therefore, these composites should have potential applications in UV curable materials, such as luminescence coatings.

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“…The formations of semimetal to semiconductor materials are being used in diferent scientiic devices such as in optic and electro optic devices [39]. Bi NPs exhibit absorption in the UV region [27][28][29]43].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic Investigations on Polyvinyl Alcohol Film with Complex of Terbium Ions along with Bismuth Nanoparticles for Improved Green Emission

Kaur¹,

Kumar²,

Rai³

2017

Acrylic Polymers in Healthcare

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In this chapter, bismuth nanoparticles (NPs) have been synthesized by the pulsed laser ablation technique at diferent pH in diferent aqueous solutions (namely, water (H), water + sodium hydroxide (HN), and water + hydrochloric acid (HC)). The NPs in aqueous solutions have been characterized by transmission electron microscopy (TEM) and UV-Vis-NIR absorption techniques. The NPs are spherical, core shell, and hollow spheres in H, HN, and HC, respectively. The vibrational features have been studied using Raman technique and correlated with solid NPs, hollow NPs, core shell NPs, and NPs complex, etc. The Bi NPs were subsequently scatered with Tb 3+ ions and their complex with salicylic acid (Sal) and 1,10-phenanthroline in aqueous solution of polyvinyl alcohol to get thin polymer ilms. Then photoluminescence properties of Tb 3+ ions and the (Tb(Sal) 3 (Phen)) complex were studied using 266 nm and 355 nm as excitation wavelengths to seek into the inluence of Bi NPs on their emissive properties. Terbium ions in case of (Tb(Sal) 3 (Phen)) complex together with NPs demonstrate an intense and extended emission spectrum in the 375-700 nm range for transition arising even from

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Acetylsalicylic acid sensitized lasing luminescence of terbium complex in PVA: A case of energy avalanche via 1, 10-Phenanthroline

Cited by 10 publications

References 19 publications

Silver nanoparticles embedded hybrid organometallic complexes: Structural interactions, photo-induced energy transfer, plasmonic effect and optical thermometry

Silver nanoparticles embedded hybrid organometallic complexes: Structural interactions, photo-induced energy transfer, plasmonic effect and optical thermometry

Preparation and Characterization of a Novel Terbium Complex Coordinated with 10-Undecenoic Acid for UV-Cured Coatings

Spectroscopic Investigations on Polyvinyl Alcohol Film with Complex of Terbium Ions along with Bismuth Nanoparticles for Improved Green Emission

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