Europium coordination compounds based on carbacylamidophosphate ligands for metal-organic light-emitting diodes (MOLEDs)

• Veröffentlicht in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Datum: 2013
• Hauptverfasser: Litsis, O.O., Ovchynnikov, V.A., Sliva, T.Yu., Amirkhanov, V.M., Sorokin, V.M., Minyailo, M.A., Kolomzarov, Yu.V., Tytarenko, P.A., Minakova, I.E.
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2013
• Online Zugang: https://nasplib.isofts.kiev.ua/handle/123456789/117695
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Zitieren: Europium coordination compounds
 based on carbacylamidophosphate ligands
 for metal-organic light-emitting diodes (MOLEDs) / O.O. Litsis, V.A. Ovchynnikov, T.Yu. Sliva, V.M. Amirkhanov, V.M. Sorokin, M.A. Minyailo, Yu.V. Kolomzarov, P.A. Tytarenko, I.E. Minakova // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2013. — Т. 16, № 2. — С. 210-215. — Бібліогр.: 21 назв. — англ.

In this work, the photo- and electroluminescence properties of new red
 phosphores based on europium complexes with carbacylamidophosphate (CAPh) ligands
 and additional aromatic ligands 1,10-phenantroline and 4,4'-bipyridine have been
 studied. Compounds Eu(L¹)₃(phen) (1), Eu(L²)₃(phen) (2), Eu2(L¹)₆(i-prOH)²(4,4'-bipy)
 (3) and Eu²(L²)₆(H2O)²(4,4'-bipy) (4), where HL – 2,2,2-trichloro-N-(dipiperidin-1-ylphosphoryl) acetamide,
 HL² – 2,2,2-trichloro-N-(dimorpholin-1-ylphosphoryl)acetamide,
 were synthesized. Technology of europium complexes coating
 from solutions with different concentrations in different solvents has been developed.
 Experimental samples of light-emitting planar heterostructures were fabricated using the
 device architecture comprising an anode (ITO), a hole transport layer of 1,4-
 Bis(diphenylamino)benzene (BDB), a layer of complex and a cathode (Al or Mg).
 Another heterostructure configuration with a hole-transport layer of poly(3,4-
 ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) has also been
 investigated. The different types of planar heterostructures were prepared, and their
 current-voltage characteristics have been discussed.