Journalofthe Korean ChemicalSociety 2000, Vol.44, No. 3
Printedin the Republicof Korea
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Synthesis and Electrochemical Characterization of The New Luminescent Metal-Chelate Complexes
Jee Young Park, Don Soo Choi, Young Kwan Kim, and Yunkyoung Ha*
Depamnent of Science, Hong-ik University, Seoul 121-791, Korea (Received February 20, 2000)
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ABSTRACT. Organic electroluminescent devices (OELD) with multilayer structures have been studied actively for the application to a flat-panel display. Metal-chelate complexes have been intensively investigated m an emitting layer and recognized to have excellent electroluminescence (EL) properties. In this study, we synthesized several metal-chelate complexes which display blue emission. The complexes prepmed herein are beryllium and zinc complexes coordinated by quinaldate or 8-quinolinecarboxylate. These complexes were characterized by FT-IR, MWFAB, ‘H-NMR, UV-vis and photolurninescence (PL). More importantly, the elec- trochemical gap (Eg), electron affinity and ionization potential (1P) of these complex films were inves- tigated. Data from cyclic vokamrnetry(CV) were compared with the bandgap obtained from UV-vis and discussed. Further studies on the EL of these new materials are now in progress.——
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Journal ofthe Korean Chemical Society
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Journal ofthe Korean Chemical Society
1 405 273–548 blue
2 363 273–525 deep-blue
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4 367 262–519 blue
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Journal of the Korean ChemicalSocie~
