Lanthanide spectroscopy in probing structure-property correlation in multi-site photoluminescent phosphors

Gupta, Santosh K.; Kadam, R.M.; Pujari, P. K.

doi:10.1016/j.ccr.2020.213405

Cited by 114 publications

(62 citation statements)

References 299 publications

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“…By the same token, synthesis methods play a huge role in designing nanomaterials. − ,, Their controlled synthesis mainly focuses on optimizing size, shape, composition, surface, defect, architecture, dimension, etc. , Several common synthesis techniques of nanomaterials include sol–gel, combustion, solvothermal, hydrothermal, sonochemical, microemulsion, polyol, coprecipitation, and molten salt synthesis (MSS), etc. ,,− Table S1 summarizes the advantages and disadvantages of a few widely used synthesis methods for inorganic nanomaterials along with the solid-state route (SSR) for comparison.…”

Section: Introductionmentioning

confidence: 99%

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

2021

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A wide range of inorganic nanomaterials with many fascinating properties and application potentials in widespread fields may be synthesized by wet chemical synthetic routes. To achieve scientific and commercial viability of nanomaterials with uniformity and scalability, it is necessary to develop efficient and cost-effective, preferably sustainable, methods. The molten salt synthesis (MSS) method is one such bottom-up technique to fabricate a wide variety of inorganic nanomaterials with tunable size, morphology, and surface characteristics. It is also environmentally friendly, cost-effective, simple to operate, easy to scale, and generalizable, etc. This review gives a critical overview on this emerging and rapidly developing method for making defect free nanomaterials in well-defined texture, surface, and morphology at a relatively low formation temperature. We have discussed its different aspects, including the role of molten salts, the choice of molten salts, the electrochemical aspects, some advanced modifications of the conventional MSS technique, and their implications. To show the most recent development on MSS synthesized inorganic nanomaterials, this review only encompasses the studies reported over the last six years (2015−2020). We have summarized technologically important and emerging families of inorganic nanomaterials such as metal oxides, fluorides, nitrides, silicides, chalcogenides, oxohalides, borides, and carbides. Finally, a few perspectives for the MSS method are highlighted. It is expected that this review will further attract scientists to explore the MSS method in making size-and shape-tunable nanomaterials.

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Section: Introductionmentioning

confidence: 99%

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

2021

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“…The lanthanide complexes with 1,3-diketonates provide good basis for developing of sensors [ 31 ]. The sensing ability of lanthanide complexes with 1,3-diketonates has recently been exemplified by sensitivity of lanthanide-centered luminescence to temperature and pH changes, sensing of antibiotics, pressure-induced phase transition [ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 ].…”

Section: Introductionmentioning

confidence: 99%

1,3-Diketone Calix[4]arene Derivatives—A New Type of Versatile Ligands for Metal Complexes and Nanoparticles

2021

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The present review is aimed at highlighting outlooks for cyclophanic 1,3-diketones as a new type of versatile ligands and building blocks of the nanomaterial for sensing and bioimaging. Thus, the main synthetic routes for achieving the structural diversity of cyclophanic 1,3-diketones are discussed. The structural diversity is demonstrated by variation of both cyclophanic backbones (calix[4]arene, calix[4]resorcinarene and thiacalix[4]arene) and embedding of different substituents onto lower or upper macrocyclic rims. The structural features of the cyclophanic 1,3-diketones are correlated with their ability to form lanthanide complexes exhibiting both lanthanide-centered luminescence and magnetic relaxivity parameters convenient for contrast effect in magnetic resonance imaging (MRI). The revealed structure–property relationships and the applicability of facile one-pot transformation of the complexes to hydrophilic nanoparticles demonstrates the advantages of 1,3-diketone calix[4]arene ligands and their complexes in developing of nanomaterials for sensing and bioimaging.

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“…The core-like characteristics of trivalent lanthanide f–f transition leads to sharp emission with high color purity and minimal intra/inter Ln 3+ spectral band overlap covering the entire spectrum from UV to visible to near infrared (NIR) with an excited state lifetime in the μs–ms range. 1–3 The only issues are the low molar extinction coefficient of ∼1 M −1 cm −1 and the quenching by high frequency oscillators such as OH, NH and CH. 1 Such problems can be resolved by incorporation in suitable host materials.…”

Section: Introductionmentioning

confidence: 99%

“…1–3 The only issues are the low molar extinction coefficient of ∼1 M −1 cm −1 and the quenching by high frequency oscillators such as OH, NH and CH. 1 Such problems can be resolved by incorporation in suitable host materials. 4 In lanthanide-doped host materials, the high-intensity photoluminescence (PL) of Ln 3+ appears via host-sensitized energy transfer (HSET).…”

Section: Introductionmentioning

confidence: 99%

Modulating the optical and electrical properties of oxygen vacancy-enriched La₂Ce₂O₇:Sm³⁺ pyrochlore: role of dopant local structure and concentration

et al. 2022

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Lanthanide spectroscopy in probing structure-property correlation in multi-site photoluminescent phosphors

Cited by 114 publications

References 299 publications

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

1,3-Diketone Calix[4]arene Derivatives—A New Type of Versatile Ligands for Metal Complexes and Nanoparticles

Modulating the optical and electrical properties of oxygen vacancy-enriched La₂Ce₂O₇:Sm³⁺ pyrochlore: role of dopant local structure and concentration

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Lanthanide spectroscopy in probing structure-property correlation in multi-site photoluminescent phosphors

Cited by 114 publications

References 299 publications

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

Recent Developments on Molten Salt Synthesis of Inorganic Nanomaterials: A Review

1,3-Diketone Calix[4]arene Derivatives—A New Type of Versatile Ligands for Metal Complexes and Nanoparticles

Modulating the optical and electrical properties of oxygen vacancy-enriched La2Ce2O7:Sm3+ pyrochlore: role of dopant local structure and concentration

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Modulating the optical and electrical properties of oxygen vacancy-enriched La₂Ce₂O₇:Sm³⁺ pyrochlore: role of dopant local structure and concentration