TY - JOUR
T1 - Spectroscopic characteristics of highly luminescent warm Sm3+ complexes for optical device applications
AU - Kumari, Poonam
AU - Lather, Vaishnavi
AU - Malik, Arjun
AU - Ahlawat, Pratibha
AU - Kumar, Rajesh
N1 - Publisher Copyright:
© 2024 Elsevier B.V.
PY - 2024/11
Y1 - 2024/11
N2 - Six samarium complexes that radiated orange color, were synthesized with the chelation of organic sensitizer using solvent-assisted grinding method. The complexes were analyzed by various techniques elemental analysis, XRD, FTIR, NMR, UV–visible spectroscopy and photoluminescent spectra in solid and solution states respectively. The calorimetry aspects of the complexes in both states were also determined through the MATLAB software. FWHM values for the corresponding transition were assessed by the Gaussian fitting, which was used to compute the lasing properties. Optical properties and Urbach energy investigation have been done by the diffused reflectance spectra, which suggest that these complexes are good contenders for semiconductor devices. Judd-Ofelt parameter indicates that these complexes possess an asymmetric environment around samarium ion with covalent character and moderate rigidity. For justification of the optical band gap, computational study (HOMO-LUMO) difference was found by DFT calculation in ORCA software. Thermal stability and biological properties of the complexes were also determined.
AB - Six samarium complexes that radiated orange color, were synthesized with the chelation of organic sensitizer using solvent-assisted grinding method. The complexes were analyzed by various techniques elemental analysis, XRD, FTIR, NMR, UV–visible spectroscopy and photoluminescent spectra in solid and solution states respectively. The calorimetry aspects of the complexes in both states were also determined through the MATLAB software. FWHM values for the corresponding transition were assessed by the Gaussian fitting, which was used to compute the lasing properties. Optical properties and Urbach energy investigation have been done by the diffused reflectance spectra, which suggest that these complexes are good contenders for semiconductor devices. Judd-Ofelt parameter indicates that these complexes possess an asymmetric environment around samarium ion with covalent character and moderate rigidity. For justification of the optical band gap, computational study (HOMO-LUMO) difference was found by DFT calculation in ORCA software. Thermal stability and biological properties of the complexes were also determined.
KW - Biological properties
KW - Computational study
KW - Luminescence spectra
KW - Optical energy
KW - Samarium complexes
UR - http://www.scopus.com/inward/record.url?scp=85203054231&partnerID=8YFLogxK
U2 - 10.1016/j.optmat.2024.116046
DO - 10.1016/j.optmat.2024.116046
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AN - SCOPUS:85203054231
SN - 0925-3467
VL - 157
JO - Optical Materials
JF - Optical Materials
M1 - 116046
ER -