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Inside Front Cover: Long‐Living Light‐Emitting Electrochemical Cells – Control through Supramolecular Interactions (Adv. Mater. 20/2008)
Author(s) -
Bolink Henk J.,
Coronado Eugenio,
Costa Rubén D.,
Ortí Enrique,
Sessolo Michele,
Graber Stefan,
Doyle Kevin,
Neuburger Markus,
Housecroft Catherine E.,
Constable Edwin C.
Publication year - 2008
Publication title -
advanced materials
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200890082
Subject(s) - electroluminescence , materials science , supramolecular chemistry , ionic bonding , front cover , electrochemistry , iridium , electrochemical cell , electrode , layer (electronics) , optoelectronics , cover (algebra) , nanotechnology , molecule , ion , organic chemistry , catalysis , chemistry , mechanical engineering , engineering
Light‐emitting electrochemical cells (LECs) based on ionic transition‐metal complexes are among the simplest electroluminescent devices as they use only one active component in a mono‐or bi‐layer architecture, operate with air‐stable electrodes and are prepared using solution‐based technologies. To date, the most important drawback of these molecular devices is their short lifetimes, limited to a few days. By using an ionic iridium(III) complex containing supramolecularly‐interacting ligands able to form a caged structure, Henk Bolink and co‐workers show on p. 3910 that the lifetime of LECs can be increased to more than 3 000 hours paving the way for low‐cost and large‐area lighting and signing applications.