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Formation of Europium Chelate Complexes by Vacuum Co‐Deposition and Their Application in Organic Light‐Emitting Diodes
Author(s) -
Oyamada T.,
Kawamura Y.,
Koyama T.,
Sasabe H.,
Adachi C.
Publication year - 2004
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200400090
Subject(s) - europium , photoexcitation , materials science , deposition (geology) , oled , vacuum deposition , exciton , ion , volatility (finance) , thin film , chelation , photochemistry , inorganic chemistry , luminescence , chemical engineering , optoelectronics , nanotechnology , organic chemistry , atomic physics , metallurgy , chemistry , excited state , financial economics , engineering , biology , paleontology , layer (electronics) , quantum mechanics , physics , sediment , economics
A unique method of material synthesis based on vacuum co‐deposition is reported. A Eu complex was formed by co‐deposition of bis(dipivaloymethanato)europium (Eu(DPM) 3 ) and 2,9‐dimethyl‐4,7‐diphenyl‐1,10‐phenanthroline (BCP), which both showed excellent volatility during vacuum deposition. Photoexcitation of the BCP led to intense emission from the Eu 3+ ions, verifying efficient exciton energy transfer and therefore complex formation.