NDLI: Synthesis, Characterization, and Electroluminescent Characteristics of Mixed-Ligand Zinc(II) Complexes

Content Provider	Springer Nature Link
Author	Nishal, Vandna Kumar, Amit Kadyan, Partap S. Singh, Devender Srivastava, Ritu Singh, Ishwar Kamalasanan, Modeeparampil N.
Copyright Year	2013
Abstract	Mixed-ligand zinc complexes, i.e., 2-(2-hydroxyphenyl)benzothiazolato-5,7- dichloro-8-hydroxyquinolinato zinc(II) [ZnBTZ(Cl$_{2}$q)], 2-(2-hydroxyphenyl) benzothiazolato-5,7-dimethyl-8-hydroxyquinolinato zinc(II) [ZnBTZ(Me$_{2}$q)], and 2-(2-hydroxyphenyl)benzothiazolato-2-carbonitril-8-hydroxyquinolinato zinc(II) [ZnBTZ(CNq)], were synthesized and characterized. The metal complexes have high thermal stability (>300°C) and high glass-transition temperature (>150°C) and are suitable for optoelectronic applications. Optical properties of the synthesized complexes were characterized by using ultraviolet–visible (UV–Vis) and photoluminescence spectroscopy. Color tuning by changing the ligand was observed in synthesized complexes. Multilayered organic electroluminescent devices were fabricated having structure indium–tin oxide (ITO)/N,N′-diphenyl-N,N′-bis(1-naphthyl)-1,1′-biphenyl-4,4′-diamine (α-NPD)/zinc complex/2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP)/tris(quinolinolate)Al$^{III}$ (Alq$_{3}$)/LiF/Al using the synthesized complexes as emissive material. The electroluminescence spectra show peak emission centered at 532 nm, 572 nm, and 541 nm, respectively, for these materials. The emitted light has chromaticity with Commission Internationale d’Éclairage coordinates x = 0.35 and y = 0.56 for ZnBTZ(Cl$_{2}$q), x = 0.49 and y = 0.47 for ZnBTZ(Me$_{2}$q), and x = 0.48 and y = 0.40 for ZnBTZ(CNq) complex.
Starting Page	973
Ending Page	978
Page Count	6
File Format	PDF
ISSN	03615235
Journal	Journal of Electronic Materials
Volume Number	42
Issue Number	6
e-ISSN	1543186X
Language	English
Publisher	Springer US
Publisher Date	2013-02-23
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	OLED zinc complex electroluminescence mixed ligand Optical and Electronic Materials Characterization and Evaluation of Materials Electronics and Microelectronics, Instrumentation Solid State Physics
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering

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