Product category:
Light Emitting Diodes (LEDs)
News Release from: OLED-T | Subject: E225 electron injector material
Edited by the Electronicstalk Editorial
Team on 20 May 2008
Electron injector material boosts OLED
performance
In third-party-verified tests, E225 exhibited a 66% performance improvement in brightness and 30% reduction in driving voltage.
OLED-T has developed a new electron injector material and has published the results of third-party-verified performance tests In the tests, the new E225 electron injector material exhibited a 66% performance improvement in brightness and 30% reduction in driving voltage
This article was originally published on Electronicstalk on 5 Sep 2006 at 8.00am (UK)
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These results are based of test displays where E255 was used in combination with OLED-T's electron injector EI-101 and compared with standard configurations of electron injector and transport materials typically used as the industry benchmarks.
A phosphorescent red display device using a combination aluminium quinolate (AlQ3) as the electron injector and lithium fluoride (LiF), as the electron transport had a brightness of 9.8 lumen/W, whereas by replacing the injector and transport layers for a combination of OLED-T's E225 and EI-101, respectively, the brightness improved to 16.3 lumen/W.
Display devices were driven for more than 520 hours at a current of 40mA/cm2.
The voltage required to drive the devices at 1000cd/m2 was cut by 30%.
The industry benchmark materials of AlQ3 and LiF required a driving voltage of 7.7V.
Using a combination of OLED-T's E225 and EI-101 reduced this to 5.4V.
Myrddin Jones, CEO, OLED-T, comments: "OLED-T is delighted with the third party results for this new electron transport and injector material set".
"The results show a step improvement on existing industry standard materials".
Details of the third party characterisation results for E225 are available from OLED-T but an industry standard confidentiality agreement prevents OLED-T from naming the third party.
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