Development and characterization of light‐emitting diodes (LEDs) based on ruthenium complex single layer for transparent displays | Zendy

Santos G. | Zendy; Fonseca F. | Zendy; Andrade A. M. | Zendy; Patrocínio A. O. T. | Zendy; Mizoguchi S. K. | Zendy; Murakami Iha N. Y. | Zendy; Peres M. | Zendy; Monteiro T. | Zendy; Pereira L. | Zendy

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Development and characterization of light‐emitting diodes (LEDs) based on ruthenium complex single layer for transparent displays

Author(s) -

Santos G.,

Fonseca F.,

Andrade A. M.,

Patrocínio A. O. T.,

Mizoguchi S. K.,

Murakami Iha N. Y.,

Peres M.,

Monteiro T.,

Pereira L.

Publication year - 2008

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200778925

Subject(s) - electroluminescence , light emitting diode , indium tin oxide , ruthenium , materials science , photoluminescence , diode , substrate (aquarium) , optoelectronics , layer (electronics) , indium , analytical chemistry (journal) , chemistry , nanotechnology , biochemistry , chromatography , oceanography , geology , catalysis

In this work, two ruthenium complexes, [Ru(bpy) 3 ](PF 6 ) 2 and [Ru(ph2phen) 3 ](PF 6 ) 2 in poly(methylmethacrylate) matrix were employed to build single‐layer light‐emitting electrochemical cells by spin coating on indium tin oxide substrate. In both cases the electroluminescence spectra exhibit a relatively broad band with maxima near to 625 nm and CIE ( x , y ) color coordinates of (0.64, 0.36), which are comparable with the photoluminescence data in the same medium. The best result was obtained with the [Ru(bpy) 3 ](PF 6 ) 2 device where the optical output power approaches 10 µW at the band maximum with a wall‐plug efficiency higher than 0.03%. The lowest driving voltage is about 4 V for an electrical current of 20 mA. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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