OLED-T Announces World-Class Electron Transport OLED Material and Third-Party Validation

OLED-T, a developer and manufacturer of world-class organic light emitting diode (OLED) materials and device structures, today announced a new electron transport material together with third party verified performance results.

The new electron transport material named E225 had a 66 per cent performance improvement in brightness and 30 per cent reduction in driving voltage. 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 transport and Lithium Floride (LiF), as the electron injector had a brightness of 9.8 lumens per Watt, whereas by replacing the transport and injector layers for a combination of OLED-T’s E225 and EI-101 respectively, the brightness improved to 16.3 lumens per Watt. Display devices were driven for more than 520 hours at a current of 40mAcm-2.

The voltage required to drive the devices at 1,000cdm-2 was cut by 30 per cent. 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.

“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,” said Myrddin Jones, CEO, OLED-T.

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.