Red–yellow electroluminescence, yellow–green photoluminescence of novel N, O donor ligands–chelated zirconium (IV) complexes

Autor:	Hashem Shahroosvand, Ezeddin Mohajerani, Amir Khabbazi, Fahimeh Nasouti
Rok vydání:	2013
Předmět:	Zirconium Materials science Photoluminescence Biophysics chemistry.chemical_element General Chemistry Electroluminescence Condensed Matter Physics Photochemistry Biochemistry Atomic and Molecular Physics and Optics Red shift chemistry PEDOT:PSS OLED Chelation Spectroscopy
Zdroj:	Journal of Luminescence. 135:339-344
ISSN:	0022-2313
Popis:	In this paper, eight new zirconium complexes with 1,2,4,5-benzenetetracarboxylic acid (H4btec), 1,10-phenanthroline (phen) and 4,7-diphenyl–1,10-phenanthroline (Bphen), were prepared and used as light emitting material in fabricated OLEDs. The structures of these complexes were characterized by UV–vis, FT-IR spectroscopy, 1H-NMR, CHN and ICP–AES. A yellow–green photoluminescence (PL) emission with a red shift compared to the PVK:PBD blend was observed. Devices with Zr complexes with the structure ITO/PEDOT:PSS/PVK:PBD/zirconium complex/Al emitted a yellow–red light originating from the Zr complexes. We believe that electroplex occurring at PVK–Zr complex interface is responsible for the red emission in the EL of the device.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f509d20a338090edde7607a76c4ed617 https://doi.org/10.1016/j.jlumin.2012.08.059 Zobrazit plný text záznamu Full Text from ScienceDirect