Details

Autor(en) / Beteiligte

• Hooda, Pooja
• Lather, Vaishnavi
• Malik, R.K.
• Taxak, V.B.
• Khatkar, S.P.
• Khatri, Savita
• Ahlawat, Pratibha
• Kumar, Rajesh

Titel

Achieving crimson red emission of europium (III) complexes with β-keto acids and ancillary ligands for their applications in optoelectronic devices and biomedical domain

Ist Teil von

• Optik (Stuttgart), 2022-08, Vol.264, p.169389, Article 169389

Ort / Verlag

Elsevier GmbH

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In this present work, the fabrication of europium (III) complexesdone using β-keto acid as main organic ligand and nitrogen donor chelates as ancillary ligands adopting grinding technique to investigate their applications in lighting devices, lasers, solar cells, semiconductors and bio-medical field. Europium (III) complexes were probed employing multiple analytical and spectroscopic techniques such as EDAX mapping, elemental analysis, thermo-gravimetric analysis, ultraviolet-visible spectroscopy (UV-Vis), Nuclear magnetic resonance (NMR), infrared spectroscopy (IR) and photoluminescence (PL) studies. The biological activities such as anti-oxidant and antimicrobial assays were carried out utilizing DPPH and tube dilution method respectively. The characteristic peak of europium (III) complexes documented at 616 nm was accountable for scarlet luminescence of these complexes. Color purity, CIE color coordinate and CCT were estimated to enable these complexes for display devices. The refractive index and energy band gap analysis portrays the applicability of these complexes in semiconductors and solar cells. Judd – Ofelt parameter shows the highly sensitive environment surrounding the europium (III) ion in complexes. The radiative parameters were determined which shows the applicability of these complexes as laser media. The quantum efficiency, decay time, branching ratio results their use in optoelectronic devices. Biological studies indicate better results for complexes than ligand in pharmaceuticals. The outcomes of investigation proclaimed the future prospective of the synthesized complexes in optoelectronics, lasers and display devices. Moreover, complexes can be probed further for biomedical purposes. [Display omitted] •The highly luminescent europium (III) complexes were synthesized using grinding technique.•The color purity, CIE color coordinates and CCT of these complexes reveals that all complexes act as promising candidate in warm red light emitting diodes.•Study of JO parameters, optical energy band gap, Urbach energy and diffused reflectance spectra tailors the use of these complexes in dormant semiconductor, solar cells and optoelectronic devices.•All complexes exhibited better antioxidant and antimicrobial properties than the ligand L.