Judd-Ofelt, urbach energy and geometrical optimization study of orange light emitting samarium (III) complexes with heterocyclic ligands for application in optoelectronic devices

Structural Features, Emission Analysis, and Covalency Comparison of Neodymium Acylpyrazolone Complexes using Oscillator Strengths, Covalency and Judd‐Ofelt Parameters**

“…X=field correction factor $${\left(x={{{\left({n}^{2}+2\right)}^{2}}\over{9n}}\right)}$$ . The refractive index value can be identified from the band gap energy value using Tauc's equation [56,57] . After getting the value of band gap energy (E g ) using Tauc's equation, [56,57] the refractive index is calculated using the following relation [57] $$$\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {{({{\bf n}}^{2}-1)}\over{{({\bf n}}^{2}+1)}}=1-\sqrt{{{{{\bf E}}_{{\bf g}}}\over{20}}}\hfill\cr}}$$$ …”

“…The refractive index value can be identified from the band gap energy value using Tauc's equation. [56,57] After getting the value of band gap energy (E g ) using Tauc's equation, [56,57] the refractive index is calculated using the following relation [57] ðn 2 À 1Þ Judd-Ofelt parameters have been identified (see Table 5) for all synthesised compounds using the least square approach using hakU l kbi � � � � 2 values from the Carnall publication. [54] By Judd-Ofelt theory calculated value of oscillator strength (f cal ) was computed from initial (a) to excited state (b) transitions by applying equation (2).…”

Computational analysis, Urbach energy and Judd–Ofelt parameter of warm Sm3+complexes having applications in photovoltaic and display devices

“…These two significant excitation peaks in the solid state account for π–π* and n–π* transition of L respectively. 74 …”

“…These two signicant excitation peaks in the solid state account for p-p* and n-p* transition of L respectively. 74 The solution-phase excitation spectra (Fig. 10(b)) portrayed a band between 350 and 385 nm centered at 362 nm, which is credited due to the p-p* transition of L and is less broad than that in the solid state.…”

Structure, optical transition analysis and magnetic study of lanthanide based metal-organic framework: holmium bi-tartrate trihydrate

“…The voids are created by the coordination of metal ions/clusters with the organic moieties. The hybrid nature of MOFs make them potentially active in gas storage media [1,2], luminescent sensors [3], Supercapacitors [4], molecular magnetism [5], catalysis [6] optoelectronic devices [7] and batterytype electrodes [8]. The primary motivation for incorporating Ln 3+ ions into the framework is that, despite being rare and challenging to get, lanthanides are highly prized for their distinctive qualities, such as optically active elements in their ionised state and the potential of 4f metal clusters to behave as molecular magnetic materials.…”