Lasing properties, Judd-Ofelt and band gap investigation of cool green emanating Tb3+ complexes for solid and solution state luminescence

Abstract

Optical and photophysical characteristics of six green emanating terbium complexes which have been prepared by eco-efficient solvent assisted grinding process. The prepared complexes display bright green luminescence with a prominent peak at 548 nm accredited to 5D4 → 7F5 transition of terbium ions, as examined by PL emission spectra monitored at 355 nm excitation wavelength. Spectroscopic investigation of these synthesised complexes was explored. Photometric features such as CIE coordinate, CCT and %CP asserted their green luminescence and are found in agreement with brilliant green light. Lasing properties, optoelectronic and thermal analysis of terbium complexes were performed. To determine the coordination environment around the metal ion, JO parameter (Ω2, Ω4, Ω6) and intensity ratio were also determined. The research offers a glowing cool green emitting constituent for the manufacturing of OLEDs and innovative optoelectronic devices. Antioxidant and antimicrobial properties were also examined. Computational studied of complexes were carried out successfully.