scholarly journals Bright and stable light-emitting electrochemical cells based on an intramolecularly π-stacked, 2-naphthyl-substituted iridium complex

2014 ◽  
Vol 2 (34) ◽  
pp. 7047-7055 ◽  
Author(s):  
Gabriel E. Schneider ◽  
Antonio Pertegás ◽  
Edwin C. Constable ◽  
Catherine E. Housecroft ◽  
Nik Hostettler ◽  
...  
Keyword(s):  
Iridium Complex ◽  
Electrochemical Cells ◽  
High Luminance ◽  
Light Emitting ◽  
Emissive Layer

LECs incorporating [Ir(ppy)2(Naphbpy)][PF6] (Hppy = 2-phenylpyridine, Naphbpy = 6-(2-naphthyl)-2,2′-bipyridine) in the emissive layer show high luminance and exceptional stabilities.

Increasing the efficiency of light-emitting electrochemical cells by limiting the exciton quenching

2013 ◽  
Vol 1567 ◽  
Author(s):  
Daniel Tordera ◽  
Antonio Pertegás ◽  
Enrique Ortí ◽  
Henk J. Bolink
Keyword(s):  
Organic Light Emitting Diodes ◽  
Iridium Complex ◽  
Attractive Alternative ◽  
Electrochemical Cells ◽  
High Luminance ◽  
Electroluminescent Devices ◽  
Light Emitting ◽  
Organic Light ◽  
Short Period ◽  
Device Lifetime

ABSTRACTLight-emitting electrochemical cells (LECs) are one of the simplest electroluminescent devices. The possibility to be processed from solution and to operate with air-stable materials makes them an attractive alternative to organic light emitting diodes (OLEDs). Still their efficiencies are below those obtained in OLEDs. Additionally the best efficiencies were reported at low luminances and sustained for a short period of time. Here we show that for a LEC employing an orange-emitting charged iridium complex that is driven using a pulsed driving scheme high efficiencies of up to 20.5 cd A-1 can be obtained at high luminance and sustained over the device lifetime. It is also shown that the efficiency depends strongly on the current density applied.

Cationic iridium complex for the design of soft salt-based phosphorescent OLEDs and color-tunable light-emitting electrochemical cells

2011 ◽  
Vol 12 (10) ◽  
pp. 1683-1694 ◽  
Author(s):  
Frédéric Dumur ◽  
Gihane Nasr ◽  
Guillaume Wantz ◽  
Cédric R. Mayer ◽  
Eddy Dumas ◽  
...  
Keyword(s):  
Iridium Complex ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Color Tunable

Stable blue-green light-emitting electrochemical cells based on a cationic iridium complex with phenylpyrazole as the cyclometalated ligands

2012 ◽  
Vol 13 (10) ◽  
pp. 1948-1955 ◽  
Author(s):  
Tao Hu ◽  
Lian Duan ◽  
Juan Qiao ◽  
Lei He ◽  
Deqiang Zhang ◽  
...  
Keyword(s):  
Green Light ◽  
Iridium Complex ◽  
Electrochemical Cells ◽  
Light Emitting

Light-emitting electrochemical cells based on a supramolecularly-caged phenanthroline-based iridium complex

2011 ◽  
Vol 47 (11) ◽  
pp. 3207 ◽  
Author(s):  
Rubén D. Costa ◽  
Enrique Ortí ◽  
Henk J. Bolink ◽  
Stefan Graber ◽  
Catherine E. Housecroft ◽  
...  
Keyword(s):  
Iridium Complex ◽  
Electrochemical Cells ◽  
Light Emitting

Incorporating a hole-transport material into the emissive layer of solid-state light-emitting electrochemical cells to improve device performance

2015 ◽  
Vol 17 (26) ◽  
pp. 17253-17259 ◽  
Author(s):  
Po-Chin Huang ◽  
Gintare Krucaite ◽  
Hai-Ching Su ◽  
Saulius Grigalevicius
Keyword(s):  
Solid State ◽  
Hole Transport ◽  
Electrochemical Cells ◽  
Device Performance ◽  
Light Emitting ◽  
Emissive Layer ◽  
Device Efficiency ◽  
Improve Device

Doping hole transport materials into light-emitting electrochemical cells improves carrier balance and enhances device efficiency.

Intramolecular π-Stacking in a Phenylpyrazole-Based Iridium Complex and Its Use in Light-Emitting Electrochemical Cells

2010 ◽  
Vol 132 (17) ◽  
pp. 5978-5980 ◽  
Author(s):  
Rubén D. Costa ◽  
Enrique Ortí ◽  
Henk J. Bolink ◽  
Stefan Graber ◽  
Catherine E. Housecroft ◽  
...  
Keyword(s):  
Iridium Complex ◽  
Electrochemical Cells ◽  
Light Emitting ◽  
Π Stacking
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