Spectroscopic and optoelectronic investigations of 3,8-bis(3,4-(ethylenedioxy)thien-2-yl)-1,10-phenanthroline

• Published in: Journal of materials science. Materials in electronics Vol. 33; no. 1; pp. 115 - 125
• Main Authors: Nehra, Kapeesha, Dalal, Anuj, Hooda, Anjli, Singh, Devender, Malik, Rajender Singh, Kumar, Sumit
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.01.2022; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Emission spectra; Energy bands; Energy gap; Fluorescence; Ligands; Materials Science; Mathematical analysis; Molecular orbitals; Optical and Electronic Materials; Optoelectronics; Photoluminescence; Synthesis
• ISSN: 0957-4522; 1573-482X
• DOI: 10.1007/s10854-021-07268-5

1,10-Phenanthroline-based luminescent materials play an important role as an excellent class of optoelectronic materials due to their remarkable and novel attributes for optoelectronic applications. There is an enormous demand of luminescent materials in many fields. The foremost objective of this paper is to synthesize fluorescent derivatives of 1,10-phenanthroline. The electronic effect of the substituents on the heteroaromatic ligand has been reviewed in solid state. These ligands were characterized by electrochemical study and spectroscopically. The value of energy band gap is estimated to be 3.0–4.5 eV for synthesized compounds. Photophysical features were analyzed through photoluminescence spectrometer, which indicates a strong impact of the substituents on the photoluminescent properties of the phenanthroline ligand. Upon excitation in ultraviolet region, intense broad band appeared in emission spectra of synthesized compounds lie in visible region which is further supported by CIE color coordinates. The detailed explanation about the geometry and frontier molecular orbitals calculation was carried out with the help of Avogadro and ORCA software.