Synthesis Of Tb0.7Eu0.3(acac)3 Phen Organic Polymer Complex For Display Devices

¹Department of Physics, Nabira College, Katol 441302, India

²Department of Physics, RTM Nagpur University, Nagpur 440033, India

Adv. Mater. Lett., 2014, 5 (11), pp 678-681

DOI: 10.5185/amlett.2014.amwc1033

Publication Date (Web): Nov 09, 2014

Copyright © IAAM-VBRI Press

E-mail: pwyawalkar@gmail.com

Abstract

Synthesis of volatile Eu(acac)₃phen and Tb(acac)₃phen complexes by solution technique were reported in this paper. The combination of Eu and Tb complexes, namely TbxEu_(1-x)(acac)₃phen (x=0.1,0.3,0.5,0.7,0.9) were also synthesized by maintaining stoichiometric ratio. Optical properties of these synthesized complexes were studied using photoluminescence technique. Eu(acac)3phen exhibits red intense emission at 612 nm with a sharp spectral bandwidth 5 nm when excited at a wavelength of 323nm, while Tb(acac)₃ phen shows green emission at 547 nm when excited at 347nm. The emission spectra of TbxEu_(1-x)(acac)₃phen reveals that Tb_0.7Eu_0.3(acac)₃ phen complex exhibits maximum intensity among all the stichiometrically doped complexes. When Tb_0.7Eu_0.3(acac)₃ phen was molecularly doped in poly methyl Metacrylate (PMMA) to check its compatibility in polymers, enhancement in intensity was observed in these blended films, proving that these complexes can be used as emissive materials for fabricating OLEDs and displays by vacuum deposition as well as solution techniques.

Keywords

Eu/Tb complex synthesis, photoluminescence, iridium complex